https://skippercheck.net/colreg-simulator/fundamentals https://skippercheck.net/img/colreg/colreg-rule-7-cpa-tcpa-risk-of-collision-recognition-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 7 — CPA / TCPA risk-of-collision recognition. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 7 — CPA / TCPA risk-of-collision recognition https://skippercheck.net/img/colreg/colreg-familiarisation-radar-ais-rules-2-5-8-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 2, 5–8 — Familiarisation — radar PPI with AIS targets. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 2, 5–8 — Familiarisation — radar PPI with AIS targets https://skippercheck.net/img/colreg/colreg-rule-5-proper-lookout-prioritising-risks-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 5 — Lookout — prioritising risks. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 5 — Lookout — prioritising risks https://skippercheck.net/img/colreg/colreg-multi-target-encounter-arpa-tracking-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 5–8 — Multi-target encounter — ARPA tracking. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 5–8 — Multi-target encounter — ARPA tracking https://skippercheck.net/img/colreg/colreg-rule-2-departure-to-avoid-immediate-danger-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 2 — Departure to avoid immediate danger. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 2 — Departure to avoid immediate danger https://skippercheck.net/img/colreg/colreg-rule-8-action-to-avoid-collision-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 8 — Action to avoid collision. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 8 — Action to avoid collision https://skippercheck.net/img/colreg/colreg-rule-6-safe-speed-in-fog-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 6 — Safe speed in fog. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 6 — Safe speed in fog https://skippercheck.net/colreg-simulator/lights-and-shapes https://skippercheck.net/img/colreg/colreg-rule-30-vessel-at-anchor-bow-skippercheck.webp?v=1778238614 Vessel at anchor under COLREG Rule 30, viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 30 — Vessel at anchor — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-30-vessel-at-anchor-starboard-bow-skippercheck.webp?v=1778238614 Vessel at anchor under COLREG Rule 30, viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 30 — Vessel at anchor — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-30-vessel-at-anchor-starboard-beam-skippercheck.webp?v=1778238614 Vessel at anchor under COLREG Rule 30, viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 30 — Vessel at anchor — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-30-vessel-at-anchor-starboard-quarter-skippercheck.webp?v=1778238614 Vessel at anchor under COLREG Rule 30, viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 30 — Vessel at anchor — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-30-vessel-at-anchor-stern-skippercheck.webp?v=1778238614 Vessel at anchor under COLREG Rule 30, viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 30 — Vessel at anchor — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-30-vessel-at-anchor-port-quarter-skippercheck.webp?v=1778238614 Vessel at anchor under COLREG Rule 30, viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 30 — Vessel at anchor — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-30-vessel-at-anchor-port-beam-skippercheck.webp?v=1778238614 Vessel at anchor under COLREG Rule 30, viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 30 — Vessel at anchor — from her port beam https://skippercheck.net/img/colreg/colreg-rule-30-vessel-at-anchor-port-bow-skippercheck.webp?v=1778238614 Vessel at anchor under COLREG Rule 30, viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 30 — Vessel at anchor — from her port bow https://skippercheck.net/img/colreg/colreg-rule-30b-vessel-at-anchor-under-50m-bow-skippercheck.webp?v=1778238614 Vessel at anchor (under 50 m — single white forward) under COLREG Rule 30(b), viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 30(b) — Vessel at anchor (under 50 m — single white forward) — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-30b-vessel-at-anchor-under-50m-starboard-bow-skippercheck.webp?v=1778238614 Vessel at anchor (under 50 m — single white forward) under COLREG Rule 30(b), viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 30(b) — Vessel at anchor (under 50 m — single white forward) — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-30b-vessel-at-anchor-under-50m-starboard-beam-skippercheck.webp?v=1778238614 Vessel at anchor (under 50 m — single white forward) under COLREG Rule 30(b), viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 30(b) — Vessel at anchor (under 50 m — single white forward) — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-30b-vessel-at-anchor-under-50m-starboard-quarter-skippercheck.webp?v=1778238614 Vessel at anchor (under 50 m — single white forward) under COLREG Rule 30(b), viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 30(b) — Vessel at anchor (under 50 m — single white forward) — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-30b-vessel-at-anchor-under-50m-stern-skippercheck.webp?v=1778238614 Vessel at anchor (under 50 m — single white forward) under COLREG Rule 30(b), viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 30(b) — Vessel at anchor (under 50 m — single white forward) — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-30b-vessel-at-anchor-under-50m-port-quarter-skippercheck.webp?v=1778238614 Vessel at anchor (under 50 m — single white forward) under COLREG Rule 30(b), viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 30(b) — Vessel at anchor (under 50 m — single white forward) — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-30b-vessel-at-anchor-under-50m-port-beam-skippercheck.webp?v=1778238614 Vessel at anchor (under 50 m — single white forward) under COLREG Rule 30(b), viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 30(b) — Vessel at anchor (under 50 m — single white forward) — from her port beam https://skippercheck.net/img/colreg/colreg-rule-30b-vessel-at-anchor-under-50m-port-bow-skippercheck.webp?v=1778238614 Vessel at anchor (under 50 m — single white forward) under COLREG Rule 30(b), viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 30(b) — Vessel at anchor (under 50 m — single white forward) — from her port bow https://skippercheck.net/img/colreg/colreg-rule-28-constrained-by-draught-bow-skippercheck.webp?v=1778238614 Vessel constrained by her draught (CBD) under COLREG Rule 28, viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 28 — Vessel constrained by her draught (CBD) — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-28-constrained-by-draught-starboard-bow-skippercheck.webp?v=1778238614 Vessel constrained by her draught (CBD) under COLREG Rule 28, viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 28 — Vessel constrained by her draught (CBD) — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-28-constrained-by-draught-starboard-beam-skippercheck.webp?v=1778238614 Vessel constrained by her draught (CBD) under COLREG Rule 28, viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 28 — Vessel constrained by her draught (CBD) — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-28-constrained-by-draught-starboard-quarter-skippercheck.webp?v=1778238614 Vessel constrained by her draught (CBD) under COLREG Rule 28, viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 28 — Vessel constrained by her draught (CBD) — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-28-constrained-by-draught-stern-skippercheck.webp?v=1778238614 Vessel constrained by her draught (CBD) under COLREG Rule 28, viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 28 — Vessel constrained by her draught (CBD) — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-28-constrained-by-draught-port-quarter-skippercheck.webp?v=1778238614 Vessel constrained by her draught (CBD) under COLREG Rule 28, viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 28 — Vessel constrained by her draught (CBD) — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-28-constrained-by-draught-port-beam-skippercheck.webp?v=1778238614 Vessel constrained by her draught (CBD) under COLREG Rule 28, viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 28 — Vessel constrained by her draught (CBD) — from her port beam https://skippercheck.net/img/colreg/colreg-rule-28-constrained-by-draught-port-bow-skippercheck.webp?v=1778238614 Vessel constrained by her draught (CBD) under COLREG Rule 28, viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 28 — Vessel constrained by her draught (CBD) — from her port bow https://skippercheck.net/img/colreg/colreg-rule-27d-dredger-or-underwater-operations-bow-skippercheck.webp?v=1778238614 Dredger or underwater operations vessel under COLREG Rule 27(d), viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(d) — Dredger or underwater operations vessel — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-27d-dredger-or-underwater-operations-starboard-bow-skippercheck.webp?v=1778238614 Dredger or underwater operations vessel under COLREG Rule 27(d), viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(d) — Dredger or underwater operations vessel — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-27d-dredger-or-underwater-operations-starboard-beam-skippercheck.webp?v=1778238614 Dredger or underwater operations vessel under COLREG Rule 27(d), viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(d) — Dredger or underwater operations vessel — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-27d-dredger-or-underwater-operations-starboard-quarter-skippercheck.webp?v=1778238614 Dredger or underwater operations vessel under COLREG Rule 27(d), viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(d) — Dredger or underwater operations vessel — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-27d-dredger-or-underwater-operations-stern-skippercheck.webp?v=1778238614 Dredger or underwater operations vessel under COLREG Rule 27(d), viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(d) — Dredger or underwater operations vessel — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-27d-dredger-or-underwater-operations-port-quarter-skippercheck.webp?v=1778238614 Dredger or underwater operations vessel under COLREG Rule 27(d), viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(d) — Dredger or underwater operations vessel — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-27d-dredger-or-underwater-operations-port-beam-skippercheck.webp?v=1778238614 Dredger or underwater operations vessel under COLREG Rule 27(d), viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(d) — Dredger or underwater operations vessel — from her port beam https://skippercheck.net/img/colreg/colreg-rule-27d-dredger-or-underwater-operations-port-bow-skippercheck.webp?v=1778238614 Dredger or underwater operations vessel under COLREG Rule 27(d), viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(d) — Dredger or underwater operations vessel — from her port bow https://skippercheck.net/img/colreg/colreg-rule-26-trawling-vessel-bow-skippercheck.webp?v=1778238614 Trawling vessel — green over white under COLREG Rule 26, viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26 — Trawling vessel — green over white — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-26-trawling-vessel-starboard-bow-skippercheck.webp?v=1778238614 Trawling vessel — green over white under COLREG Rule 26, viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26 — Trawling vessel — green over white — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-26-trawling-vessel-starboard-beam-skippercheck.webp?v=1778238614 Trawling vessel — green over white under COLREG Rule 26, viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26 — Trawling vessel — green over white — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-26-trawling-vessel-starboard-quarter-skippercheck.webp?v=1778238614 Trawling vessel — green over white under COLREG Rule 26, viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26 — Trawling vessel — green over white — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-26-trawling-vessel-stern-skippercheck.webp?v=1778238614 Trawling vessel — green over white under COLREG Rule 26, viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26 — Trawling vessel — green over white — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-26-trawling-vessel-port-quarter-skippercheck.webp?v=1778238614 Trawling vessel — green over white under COLREG Rule 26, viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26 — Trawling vessel — green over white — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-26-trawling-vessel-port-beam-skippercheck.webp?v=1778238614 Trawling vessel — green over white under COLREG Rule 26, viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26 — Trawling vessel — green over white — from her port beam https://skippercheck.net/img/colreg/colreg-rule-26-trawling-vessel-port-bow-skippercheck.webp?v=1778238614 Trawling vessel — green over white under COLREG Rule 26, viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26 — Trawling vessel — green over white — from her port bow https://skippercheck.net/img/colreg/colreg-rule-26cii-fishing-vessel-outlying-gear-over-150m-bow-skippercheck.webp?v=1778238614 Fishing vessel with outlying gear over 150 m under COLREG Rule 26(c)(ii), viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26(c)(ii) — Fishing vessel with outlying gear over 150 m — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-26cii-fishing-vessel-outlying-gear-over-150m-starboard-bow-skippercheck.webp?v=1778238614 Fishing vessel with outlying gear over 150 m under COLREG Rule 26(c)(ii), viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26(c)(ii) — Fishing vessel with outlying gear over 150 m — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-26cii-fishing-vessel-outlying-gear-over-150m-starboard-beam-skippercheck.webp?v=1778238614 Fishing vessel with outlying gear over 150 m under COLREG Rule 26(c)(ii), viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26(c)(ii) — Fishing vessel with outlying gear over 150 m — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-26cii-fishing-vessel-outlying-gear-over-150m-starboard-quarter-skippercheck.webp?v=1778238614 Fishing vessel with outlying gear over 150 m under COLREG Rule 26(c)(ii), viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26(c)(ii) — Fishing vessel with outlying gear over 150 m — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-26cii-fishing-vessel-outlying-gear-over-150m-stern-skippercheck.webp?v=1778238614 Fishing vessel with outlying gear over 150 m under COLREG Rule 26(c)(ii), viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26(c)(ii) — Fishing vessel with outlying gear over 150 m — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-26cii-fishing-vessel-outlying-gear-over-150m-port-quarter-skippercheck.webp?v=1778238614 Fishing vessel with outlying gear over 150 m under COLREG Rule 26(c)(ii), viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26(c)(ii) — Fishing vessel with outlying gear over 150 m — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-26cii-fishing-vessel-outlying-gear-over-150m-port-beam-skippercheck.webp?v=1778238614 Fishing vessel with outlying gear over 150 m under COLREG Rule 26(c)(ii), viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26(c)(ii) — Fishing vessel with outlying gear over 150 m — from her port beam https://skippercheck.net/img/colreg/colreg-rule-26cii-fishing-vessel-outlying-gear-over-150m-port-bow-skippercheck.webp?v=1778238614 Fishing vessel with outlying gear over 150 m under COLREG Rule 26(c)(ii), viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26(c)(ii) — Fishing vessel with outlying gear over 150 m — from her port bow https://skippercheck.net/img/colreg/colreg-rule-26c-fishing-vessel-non-trawling-nets-or-lines-bow-skippercheck.webp?v=1778238614 Fishing vessel (nets / lines, non-trawling) under COLREG Rule 26(c), viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26(c) — Fishing vessel (nets / lines, non-trawling) — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-26c-fishing-vessel-non-trawling-nets-or-lines-starboard-bow-skippercheck.webp?v=1778238614 Fishing vessel (nets / lines, non-trawling) under COLREG Rule 26(c), viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26(c) — Fishing vessel (nets / lines, non-trawling) — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-26c-fishing-vessel-non-trawling-nets-or-lines-starboard-beam-skippercheck.webp?v=1778238614 Fishing vessel (nets / lines, non-trawling) under COLREG Rule 26(c), viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26(c) — Fishing vessel (nets / lines, non-trawling) — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-26c-fishing-vessel-non-trawling-nets-or-lines-starboard-quarter-skippercheck.webp?v=1778238614 Fishing vessel (nets / lines, non-trawling) under COLREG Rule 26(c), viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26(c) — Fishing vessel (nets / lines, non-trawling) — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-26c-fishing-vessel-non-trawling-nets-or-lines-stern-skippercheck.webp?v=1778238614 Fishing vessel (nets / lines, non-trawling) under COLREG Rule 26(c), viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26(c) — Fishing vessel (nets / lines, non-trawling) — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-26c-fishing-vessel-non-trawling-nets-or-lines-port-quarter-skippercheck.webp?v=1778238614 Fishing vessel (nets / lines, non-trawling) under COLREG Rule 26(c), viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26(c) — Fishing vessel (nets / lines, non-trawling) — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-26c-fishing-vessel-non-trawling-nets-or-lines-port-beam-skippercheck.webp?v=1778238614 Fishing vessel (nets / lines, non-trawling) under COLREG Rule 26(c), viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26(c) — Fishing vessel (nets / lines, non-trawling) — from her port beam https://skippercheck.net/img/colreg/colreg-rule-26c-fishing-vessel-non-trawling-nets-or-lines-port-bow-skippercheck.webp?v=1778238614 Fishing vessel (nets / lines, non-trawling) under COLREG Rule 26(c), viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 26(c) — Fishing vessel (nets / lines, non-trawling) — from her port bow https://skippercheck.net/img/colreg/colreg-rule-23b-air-cushion-vessel-hovercraft-bow-skippercheck.webp?v=1778238614 Air-cushion vessel (hovercraft) in non-displacement mode under COLREG Rule 23(b), viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(b) — Air-cushion vessel (hovercraft) in non-displacement mode — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-23b-air-cushion-vessel-hovercraft-starboard-bow-skippercheck.webp?v=1778238614 Air-cushion vessel (hovercraft) in non-displacement mode under COLREG Rule 23(b), viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(b) — Air-cushion vessel (hovercraft) in non-displacement mode — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-23b-air-cushion-vessel-hovercraft-starboard-beam-skippercheck.webp?v=1778238614 Air-cushion vessel (hovercraft) in non-displacement mode under COLREG Rule 23(b), viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(b) — Air-cushion vessel (hovercraft) in non-displacement mode — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-23b-air-cushion-vessel-hovercraft-starboard-quarter-skippercheck.webp?v=1778238614 Air-cushion vessel (hovercraft) in non-displacement mode under COLREG Rule 23(b), viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(b) — Air-cushion vessel (hovercraft) in non-displacement mode — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-23b-air-cushion-vessel-hovercraft-stern-skippercheck.webp?v=1778238614 Air-cushion vessel (hovercraft) in non-displacement mode under COLREG Rule 23(b), viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(b) — Air-cushion vessel (hovercraft) in non-displacement mode — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-23b-air-cushion-vessel-hovercraft-port-quarter-skippercheck.webp?v=1778238614 Air-cushion vessel (hovercraft) in non-displacement mode under COLREG Rule 23(b), viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(b) — Air-cushion vessel (hovercraft) in non-displacement mode — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-23b-air-cushion-vessel-hovercraft-port-beam-skippercheck.webp?v=1778238614 Air-cushion vessel (hovercraft) in non-displacement mode under COLREG Rule 23(b), viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(b) — Air-cushion vessel (hovercraft) in non-displacement mode — from her port beam https://skippercheck.net/img/colreg/colreg-rule-23b-air-cushion-vessel-hovercraft-port-bow-skippercheck.webp?v=1778238614 Air-cushion vessel (hovercraft) in non-displacement mode under COLREG Rule 23(b), viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(b) — Air-cushion vessel (hovercraft) in non-displacement mode — from her port bow https://skippercheck.net/img/colreg/colreg-rule-27f-mine-clearance-vessel-bow-skippercheck.webp?v=1778238614 Mine-clearance vessel under COLREG Rule 27(f), viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(f) — Mine-clearance vessel — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-27f-mine-clearance-vessel-starboard-bow-skippercheck.webp?v=1778238614 Mine-clearance vessel under COLREG Rule 27(f), viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(f) — Mine-clearance vessel — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-27f-mine-clearance-vessel-starboard-beam-skippercheck.webp?v=1778238614 Mine-clearance vessel under COLREG Rule 27(f), viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(f) — Mine-clearance vessel — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-27f-mine-clearance-vessel-starboard-quarter-skippercheck.webp?v=1778238614 Mine-clearance vessel under COLREG Rule 27(f), viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(f) — Mine-clearance vessel — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-27f-mine-clearance-vessel-stern-skippercheck.webp?v=1778238614 Mine-clearance vessel under COLREG Rule 27(f), viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(f) — Mine-clearance vessel — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-27f-mine-clearance-vessel-port-quarter-skippercheck.webp?v=1778238614 Mine-clearance vessel under COLREG Rule 27(f), viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(f) — Mine-clearance vessel — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-27f-mine-clearance-vessel-port-beam-skippercheck.webp?v=1778238614 Mine-clearance vessel under COLREG Rule 27(f), viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(f) — Mine-clearance vessel — from her port beam https://skippercheck.net/img/colreg/colreg-rule-27f-mine-clearance-vessel-port-bow-skippercheck.webp?v=1778238614 Mine-clearance vessel under COLREG Rule 27(f), viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(f) — Mine-clearance vessel — from her port bow https://skippercheck.net/img/colreg/colreg-rule-27a-not-under-command-not-making-way-bow-skippercheck.webp?v=1778238614 Vessel not under command, not making way under COLREG Rule 27(a), viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(a) — Vessel not under command, not making way — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-27a-not-under-command-not-making-way-starboard-bow-skippercheck.webp?v=1778238614 Vessel not under command, not making way under COLREG Rule 27(a), viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(a) — Vessel not under command, not making way — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-27a-not-under-command-not-making-way-starboard-beam-skippercheck.webp?v=1778238614 Vessel not under command, not making way under COLREG Rule 27(a), viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(a) — Vessel not under command, not making way — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-27a-not-under-command-not-making-way-starboard-quarter-skippercheck.webp?v=1778238614 Vessel not under command, not making way under COLREG Rule 27(a), viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(a) — Vessel not under command, not making way — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-27a-not-under-command-not-making-way-stern-skippercheck.webp?v=1778238614 Vessel not under command, not making way under COLREG Rule 27(a), viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(a) — Vessel not under command, not making way — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-27a-not-under-command-not-making-way-port-quarter-skippercheck.webp?v=1778238614 Vessel not under command, not making way under COLREG Rule 27(a), viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(a) — Vessel not under command, not making way — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-27a-not-under-command-not-making-way-port-beam-skippercheck.webp?v=1778238614 Vessel not under command, not making way under COLREG Rule 27(a), viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(a) — Vessel not under command, not making way — from her port beam https://skippercheck.net/img/colreg/colreg-rule-27a-not-under-command-not-making-way-port-bow-skippercheck.webp?v=1778238614 Vessel not under command, not making way under COLREG Rule 27(a), viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(a) — Vessel not under command, not making way — from her port bow https://skippercheck.net/img/colreg/colreg-rule-27-not-under-command-and-restricted-manoeuvre-bow-skippercheck.webp?v=1778238614 Vessel not under command / restricted in ability to manoeuvre under COLREG Rule 27, viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27 — Vessel not under command / restricted in ability to manoeuvre — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-27-not-under-command-and-restricted-manoeuvre-starboard-bow-skippercheck.webp?v=1778238614 Vessel not under command / restricted in ability to manoeuvre under COLREG Rule 27, viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27 — Vessel not under command / restricted in ability to manoeuvre — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-27-not-under-command-and-restricted-manoeuvre-starboard-beam-skippercheck.webp?v=1778238614 Vessel not under command / restricted in ability to manoeuvre under COLREG Rule 27, viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27 — Vessel not under command / restricted in ability to manoeuvre — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-27-not-under-command-and-restricted-manoeuvre-starboard-quarter-skippercheck.webp?v=1778238614 Vessel not under command / restricted in ability to manoeuvre under COLREG Rule 27, viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27 — Vessel not under command / restricted in ability to manoeuvre — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-27-not-under-command-and-restricted-manoeuvre-stern-skippercheck.webp?v=1778238614 Vessel not under command / restricted in ability to manoeuvre under COLREG Rule 27, viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27 — Vessel not under command / restricted in ability to manoeuvre — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-27-not-under-command-and-restricted-manoeuvre-port-quarter-skippercheck.webp?v=1778238614 Vessel not under command / restricted in ability to manoeuvre under COLREG Rule 27, viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27 — Vessel not under command / restricted in ability to manoeuvre — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-27-not-under-command-and-restricted-manoeuvre-port-beam-skippercheck.webp?v=1778238614 Vessel not under command / restricted in ability to manoeuvre under COLREG Rule 27, viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27 — Vessel not under command / restricted in ability to manoeuvre — from her port beam https://skippercheck.net/img/colreg/colreg-rule-27-not-under-command-and-restricted-manoeuvre-port-bow-skippercheck.webp?v=1778238614 Vessel not under command / restricted in ability to manoeuvre under COLREG Rule 27, viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27 — Vessel not under command / restricted in ability to manoeuvre — from her port bow https://skippercheck.net/img/colreg/colreg-rule-23-power-driven-vessel-underway-bow-skippercheck.webp?v=1778238614 Power-driven vessel under way under COLREG Rule 23, viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23 — Power-driven vessel under way — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-23-power-driven-vessel-underway-starboard-bow-skippercheck.webp?v=1778238614 Power-driven vessel under way under COLREG Rule 23, viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23 — Power-driven vessel under way — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-23-power-driven-vessel-underway-starboard-beam-skippercheck.webp?v=1778238614 Power-driven vessel under way under COLREG Rule 23, viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23 — Power-driven vessel under way — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-23-power-driven-vessel-underway-starboard-quarter-skippercheck.webp?v=1778238614 Power-driven vessel under way under COLREG Rule 23, viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23 — Power-driven vessel under way — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-23-power-driven-vessel-underway-stern-skippercheck.webp?v=1778238614 Power-driven vessel under way under COLREG Rule 23, viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23 — Power-driven vessel under way — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-23-power-driven-vessel-underway-port-quarter-skippercheck.webp?v=1778238614 Power-driven vessel under way under COLREG Rule 23, viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23 — Power-driven vessel under way — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-23-power-driven-vessel-underway-port-beam-skippercheck.webp?v=1778238614 Power-driven vessel under way under COLREG Rule 23, viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23 — Power-driven vessel under way — from her port beam https://skippercheck.net/img/colreg/colreg-rule-23-power-driven-vessel-underway-port-bow-skippercheck.webp?v=1778238614 Power-driven vessel under way under COLREG Rule 23, viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23 — Power-driven vessel under way — from her port bow https://skippercheck.net/img/colreg/colreg-rule-23d-power-driven-vessel-under-7m-and-under-7kn-bow-skippercheck.webp?v=1778238614 Power-driven vessel under 7 m and under 7 kn under COLREG Rule 23(d), viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(d) — Power-driven vessel under 7 m and under 7 kn — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-23d-power-driven-vessel-under-7m-and-under-7kn-starboard-bow-skippercheck.webp?v=1778238614 Power-driven vessel under 7 m and under 7 kn under COLREG Rule 23(d), viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(d) — Power-driven vessel under 7 m and under 7 kn — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-23d-power-driven-vessel-under-7m-and-under-7kn-starboard-beam-skippercheck.webp?v=1778238614 Power-driven vessel under 7 m and under 7 kn under COLREG Rule 23(d), viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(d) — Power-driven vessel under 7 m and under 7 kn — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-23d-power-driven-vessel-under-7m-and-under-7kn-starboard-quarter-skippercheck.webp?v=1778238614 Power-driven vessel under 7 m and under 7 kn under COLREG Rule 23(d), viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(d) — Power-driven vessel under 7 m and under 7 kn — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-23d-power-driven-vessel-under-7m-and-under-7kn-stern-skippercheck.webp?v=1778238614 Power-driven vessel under 7 m and under 7 kn under COLREG Rule 23(d), viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(d) — Power-driven vessel under 7 m and under 7 kn — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-23d-power-driven-vessel-under-7m-and-under-7kn-port-quarter-skippercheck.webp?v=1778238614 Power-driven vessel under 7 m and under 7 kn under COLREG Rule 23(d), viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(d) — Power-driven vessel under 7 m and under 7 kn — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-23d-power-driven-vessel-under-7m-and-under-7kn-port-beam-skippercheck.webp?v=1778238614 Power-driven vessel under 7 m and under 7 kn under COLREG Rule 23(d), viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(d) — Power-driven vessel under 7 m and under 7 kn — from her port beam https://skippercheck.net/img/colreg/colreg-rule-23d-power-driven-vessel-under-7m-and-under-7kn-port-bow-skippercheck.webp?v=1778238614 Power-driven vessel under 7 m and under 7 kn under COLREG Rule 23(d), viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(d) — Power-driven vessel under 7 m and under 7 kn — from her port bow https://skippercheck.net/img/colreg/colreg-rule-29-pilot-vessel-on-duty-bow-skippercheck.webp?v=1778238614 Pilot vessel on duty under COLREG Rule 29, viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 29 — Pilot vessel on duty — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-29-pilot-vessel-on-duty-starboard-bow-skippercheck.webp?v=1778238614 Pilot vessel on duty under COLREG Rule 29, viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 29 — Pilot vessel on duty — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-29-pilot-vessel-on-duty-starboard-beam-skippercheck.webp?v=1778238614 Pilot vessel on duty under COLREG Rule 29, viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 29 — Pilot vessel on duty — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-29-pilot-vessel-on-duty-starboard-quarter-skippercheck.webp?v=1778238614 Pilot vessel on duty under COLREG Rule 29, viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 29 — Pilot vessel on duty — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-29-pilot-vessel-on-duty-stern-skippercheck.webp?v=1778238614 Pilot vessel on duty under COLREG Rule 29, viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 29 — Pilot vessel on duty — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-29-pilot-vessel-on-duty-port-quarter-skippercheck.webp?v=1778238614 Pilot vessel on duty under COLREG Rule 29, viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 29 — Pilot vessel on duty — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-29-pilot-vessel-on-duty-port-beam-skippercheck.webp?v=1778238614 Pilot vessel on duty under COLREG Rule 29, viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 29 — Pilot vessel on duty — from her port beam https://skippercheck.net/img/colreg/colreg-rule-29-pilot-vessel-on-duty-port-bow-skippercheck.webp?v=1778238614 Pilot vessel on duty under COLREG Rule 29, viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 29 — Pilot vessel on duty — from her port bow https://skippercheck.net/img/colreg/colreg-rule-27b-restricted-manoeuvre-at-anchor-bow-skippercheck.webp?v=1778238614 Vessel restricted in ability to manoeuvre, at anchor under COLREG Rule 27(b), viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(b) — Vessel restricted in ability to manoeuvre, at anchor — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-27b-restricted-manoeuvre-at-anchor-starboard-bow-skippercheck.webp?v=1778238614 Vessel restricted in ability to manoeuvre, at anchor under COLREG Rule 27(b), viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(b) — Vessel restricted in ability to manoeuvre, at anchor — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-27b-restricted-manoeuvre-at-anchor-starboard-beam-skippercheck.webp?v=1778238614 Vessel restricted in ability to manoeuvre, at anchor under COLREG Rule 27(b), viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(b) — Vessel restricted in ability to manoeuvre, at anchor — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-27b-restricted-manoeuvre-at-anchor-starboard-quarter-skippercheck.webp?v=1778238614 Vessel restricted in ability to manoeuvre, at anchor under COLREG Rule 27(b), viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(b) — Vessel restricted in ability to manoeuvre, at anchor — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-27b-restricted-manoeuvre-at-anchor-stern-skippercheck.webp?v=1778238614 Vessel restricted in ability to manoeuvre, at anchor under COLREG Rule 27(b), viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(b) — Vessel restricted in ability to manoeuvre, at anchor — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-27b-restricted-manoeuvre-at-anchor-port-quarter-skippercheck.webp?v=1778238614 Vessel restricted in ability to manoeuvre, at anchor under COLREG Rule 27(b), viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(b) — Vessel restricted in ability to manoeuvre, at anchor — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-27b-restricted-manoeuvre-at-anchor-port-beam-skippercheck.webp?v=1778238614 Vessel restricted in ability to manoeuvre, at anchor under COLREG Rule 27(b), viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(b) — Vessel restricted in ability to manoeuvre, at anchor — from her port beam https://skippercheck.net/img/colreg/colreg-rule-27b-restricted-manoeuvre-at-anchor-port-bow-skippercheck.webp?v=1778238614 Vessel restricted in ability to manoeuvre, at anchor under COLREG Rule 27(b), viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 27(b) — Vessel restricted in ability to manoeuvre, at anchor — from her port bow https://skippercheck.net/img/colreg/colreg-rule-25e-sailing-and-motoring-vessel-bow-skippercheck.webp?v=1778238614 Sailing and motoring vessel (motor-sailing) under COLREG Rule 25(e), viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25(e) — Sailing and motoring vessel (motor-sailing) — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-25e-sailing-and-motoring-vessel-starboard-bow-skippercheck.webp?v=1778238614 Sailing and motoring vessel (motor-sailing) under COLREG Rule 25(e), viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25(e) — Sailing and motoring vessel (motor-sailing) — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-25e-sailing-and-motoring-vessel-starboard-beam-skippercheck.webp?v=1778238614 Sailing and motoring vessel (motor-sailing) under COLREG Rule 25(e), viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25(e) — Sailing and motoring vessel (motor-sailing) — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-25e-sailing-and-motoring-vessel-starboard-quarter-skippercheck.webp?v=1778238614 Sailing and motoring vessel (motor-sailing) under COLREG Rule 25(e), viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25(e) — Sailing and motoring vessel (motor-sailing) — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-25e-sailing-and-motoring-vessel-stern-skippercheck.webp?v=1778238614 Sailing and motoring vessel (motor-sailing) under COLREG Rule 25(e), viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25(e) — Sailing and motoring vessel (motor-sailing) — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-25e-sailing-and-motoring-vessel-port-quarter-skippercheck.webp?v=1778238614 Sailing and motoring vessel (motor-sailing) under COLREG Rule 25(e), viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25(e) — Sailing and motoring vessel (motor-sailing) — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-25e-sailing-and-motoring-vessel-port-beam-skippercheck.webp?v=1778238614 Sailing and motoring vessel (motor-sailing) under COLREG Rule 25(e), viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25(e) — Sailing and motoring vessel (motor-sailing) — from her port beam https://skippercheck.net/img/colreg/colreg-rule-25e-sailing-and-motoring-vessel-port-bow-skippercheck.webp?v=1778238614 Sailing and motoring vessel (motor-sailing) under COLREG Rule 25(e), viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25(e) — Sailing and motoring vessel (motor-sailing) — from her port bow https://skippercheck.net/img/colreg/colreg-rule-25-sailing-vessel-underway-bow-skippercheck.webp?v=1778238614 Sailing vessel under way under COLREG Rule 25, viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25 — Sailing vessel under way — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-25-sailing-vessel-underway-starboard-bow-skippercheck.webp?v=1778238614 Sailing vessel under way under COLREG Rule 25, viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25 — Sailing vessel under way — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-25-sailing-vessel-underway-starboard-beam-skippercheck.webp?v=1778238614 Sailing vessel under way under COLREG Rule 25, viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25 — Sailing vessel under way — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-25-sailing-vessel-underway-starboard-quarter-skippercheck.webp?v=1778238614 Sailing vessel under way under COLREG Rule 25, viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25 — Sailing vessel under way — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-25-sailing-vessel-underway-stern-skippercheck.webp?v=1778238614 Sailing vessel under way under COLREG Rule 25, viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25 — Sailing vessel under way — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-25-sailing-vessel-underway-port-quarter-skippercheck.webp?v=1778238614 Sailing vessel under way under COLREG Rule 25, viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25 — Sailing vessel under way — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-25-sailing-vessel-underway-port-beam-skippercheck.webp?v=1778238614 Sailing vessel under way under COLREG Rule 25, viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25 — Sailing vessel under way — from her port beam https://skippercheck.net/img/colreg/colreg-rule-25-sailing-vessel-underway-port-bow-skippercheck.webp?v=1778238614 Sailing vessel under way under COLREG Rule 25, viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25 — Sailing vessel under way — from her port bow https://skippercheck.net/img/colreg/colreg-rule-25b-sailing-vessel-tricolour-masthead-under-20m-bow-skippercheck.webp?v=1778238614 Sailing vessel under 20 m with masthead tricolour under COLREG Rule 25(b), viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25(b) — Sailing vessel under 20 m with masthead tricolour — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-25b-sailing-vessel-tricolour-masthead-under-20m-starboard-bow-skippercheck.webp?v=1778238614 Sailing vessel under 20 m with masthead tricolour under COLREG Rule 25(b), viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25(b) — Sailing vessel under 20 m with masthead tricolour — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-25b-sailing-vessel-tricolour-masthead-under-20m-starboard-beam-skippercheck.webp?v=1778238614 Sailing vessel under 20 m with masthead tricolour under COLREG Rule 25(b), viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25(b) — Sailing vessel under 20 m with masthead tricolour — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-25b-sailing-vessel-tricolour-masthead-under-20m-starboard-quarter-skippercheck.webp?v=1778238614 Sailing vessel under 20 m with masthead tricolour under COLREG Rule 25(b), viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25(b) — Sailing vessel under 20 m with masthead tricolour — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-25b-sailing-vessel-tricolour-masthead-under-20m-stern-skippercheck.webp?v=1778238614 Sailing vessel under 20 m with masthead tricolour under COLREG Rule 25(b), viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25(b) — Sailing vessel under 20 m with masthead tricolour — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-25b-sailing-vessel-tricolour-masthead-under-20m-port-quarter-skippercheck.webp?v=1778238614 Sailing vessel under 20 m with masthead tricolour under COLREG Rule 25(b), viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25(b) — Sailing vessel under 20 m with masthead tricolour — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-25b-sailing-vessel-tricolour-masthead-under-20m-port-beam-skippercheck.webp?v=1778238614 Sailing vessel under 20 m with masthead tricolour under COLREG Rule 25(b), viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25(b) — Sailing vessel under 20 m with masthead tricolour — from her port beam https://skippercheck.net/img/colreg/colreg-rule-25b-sailing-vessel-tricolour-masthead-under-20m-port-bow-skippercheck.webp?v=1778238614 Sailing vessel under 20 m with masthead tricolour under COLREG Rule 25(b), viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 25(b) — Sailing vessel under 20 m with masthead tricolour — from her port bow https://skippercheck.net/img/colreg/colreg-rule-31-seaplane-on-the-water-bow-skippercheck.webp?v=1778238614 Seaplane on the water under COLREG Rule 31, viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 31 — Seaplane on the water — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-31-seaplane-on-the-water-starboard-bow-skippercheck.webp?v=1778238614 Seaplane on the water under COLREG Rule 31, viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 31 — Seaplane on the water — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-31-seaplane-on-the-water-starboard-beam-skippercheck.webp?v=1778238614 Seaplane on the water under COLREG Rule 31, viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 31 — Seaplane on the water — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-31-seaplane-on-the-water-starboard-quarter-skippercheck.webp?v=1778238614 Seaplane on the water under COLREG Rule 31, viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 31 — Seaplane on the water — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-31-seaplane-on-the-water-stern-skippercheck.webp?v=1778238614 Seaplane on the water under COLREG Rule 31, viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 31 — Seaplane on the water — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-31-seaplane-on-the-water-port-quarter-skippercheck.webp?v=1778238614 Seaplane on the water under COLREG Rule 31, viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 31 — Seaplane on the water — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-31-seaplane-on-the-water-port-beam-skippercheck.webp?v=1778238614 Seaplane on the water under COLREG Rule 31, viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 31 — Seaplane on the water — from her port beam https://skippercheck.net/img/colreg/colreg-rule-31-seaplane-on-the-water-port-bow-skippercheck.webp?v=1778238614 Seaplane on the water under COLREG Rule 31, viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 31 — Seaplane on the water — from her port bow https://skippercheck.net/img/colreg/colreg-rule-24ai-towing-vessel-tow-over-200m-bow-skippercheck.webp?v=1778238614 Towing vessel — tow over 200 m under COLREG Rule 24(a)(i), viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 24(a)(i) — Towing vessel — tow over 200 m — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-24ai-towing-vessel-tow-over-200m-starboard-bow-skippercheck.webp?v=1778238614 Towing vessel — tow over 200 m under COLREG Rule 24(a)(i), viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 24(a)(i) — Towing vessel — tow over 200 m — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-24ai-towing-vessel-tow-over-200m-starboard-beam-skippercheck.webp?v=1778238614 Towing vessel — tow over 200 m under COLREG Rule 24(a)(i), viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 24(a)(i) — Towing vessel — tow over 200 m — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-24ai-towing-vessel-tow-over-200m-starboard-quarter-skippercheck.webp?v=1778238614 Towing vessel — tow over 200 m under COLREG Rule 24(a)(i), viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 24(a)(i) — Towing vessel — tow over 200 m — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-24ai-towing-vessel-tow-over-200m-stern-skippercheck.webp?v=1778238614 Towing vessel — tow over 200 m under COLREG Rule 24(a)(i), viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 24(a)(i) — Towing vessel — tow over 200 m — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-24ai-towing-vessel-tow-over-200m-port-quarter-skippercheck.webp?v=1778238614 Towing vessel — tow over 200 m under COLREG Rule 24(a)(i), viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 24(a)(i) — Towing vessel — tow over 200 m — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-24ai-towing-vessel-tow-over-200m-port-beam-skippercheck.webp?v=1778238614 Towing vessel — tow over 200 m under COLREG Rule 24(a)(i), viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 24(a)(i) — Towing vessel — tow over 200 m — from her port beam https://skippercheck.net/img/colreg/colreg-rule-24ai-towing-vessel-tow-over-200m-port-bow-skippercheck.webp?v=1778238614 Towing vessel — tow over 200 m under COLREG Rule 24(a)(i), viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 24(a)(i) — Towing vessel — tow over 200 m — from her port bow https://skippercheck.net/img/colreg/colreg-rule-24-towing-vessel-bow-skippercheck.webp?v=1778238614 Towing vessel — tow under 200 m under COLREG Rule 24, viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 24 — Towing vessel — tow under 200 m — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-24-towing-vessel-starboard-bow-skippercheck.webp?v=1778238614 Towing vessel — tow under 200 m under COLREG Rule 24, viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 24 — Towing vessel — tow under 200 m — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-24-towing-vessel-starboard-beam-skippercheck.webp?v=1778238614 Towing vessel — tow under 200 m under COLREG Rule 24, viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 24 — Towing vessel — tow under 200 m — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-24-towing-vessel-starboard-quarter-skippercheck.webp?v=1778238614 Towing vessel — tow under 200 m under COLREG Rule 24, viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 24 — Towing vessel — tow under 200 m — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-24-towing-vessel-stern-skippercheck.webp?v=1778238614 Towing vessel — tow under 200 m under COLREG Rule 24, viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 24 — Towing vessel — tow under 200 m — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-24-towing-vessel-port-quarter-skippercheck.webp?v=1778238614 Towing vessel — tow under 200 m under COLREG Rule 24, viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 24 — Towing vessel — tow under 200 m — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-24-towing-vessel-port-beam-skippercheck.webp?v=1778238614 Towing vessel — tow under 200 m under COLREG Rule 24, viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 24 — Towing vessel — tow under 200 m — from her port beam https://skippercheck.net/img/colreg/colreg-rule-24-towing-vessel-port-bow-skippercheck.webp?v=1778238614 Towing vessel — tow under 200 m under COLREG Rule 24, viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 24 — Towing vessel — tow under 200 m — from her port bow https://skippercheck.net/img/colreg/colreg-rule-23c-wig-craft-wing-in-ground-bow-skippercheck.webp?v=1778238614 WIG (Wing-In-Ground) craft on the water under COLREG Rule 23(c), viewed head-on (bow aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(c) — WIG (Wing-In-Ground) craft on the water — head-on (bow aspect) https://skippercheck.net/img/colreg/colreg-rule-23c-wig-craft-wing-in-ground-starboard-bow-skippercheck.webp?v=1778238614 WIG (Wing-In-Ground) craft on the water under COLREG Rule 23(c), viewed from her starboard bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(c) — WIG (Wing-In-Ground) craft on the water — from her starboard bow https://skippercheck.net/img/colreg/colreg-rule-23c-wig-craft-wing-in-ground-starboard-beam-skippercheck.webp?v=1778238614 WIG (Wing-In-Ground) craft on the water under COLREG Rule 23(c), viewed from her starboard beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(c) — WIG (Wing-In-Ground) craft on the water — from her starboard beam https://skippercheck.net/img/colreg/colreg-rule-23c-wig-craft-wing-in-ground-starboard-quarter-skippercheck.webp?v=1778238614 WIG (Wing-In-Ground) craft on the water under COLREG Rule 23(c), viewed from her starboard quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(c) — WIG (Wing-In-Ground) craft on the water — from her starboard quarter https://skippercheck.net/img/colreg/colreg-rule-23c-wig-craft-wing-in-ground-stern-skippercheck.webp?v=1778238614 WIG (Wing-In-Ground) craft on the water under COLREG Rule 23(c), viewed dead astern (stern aspect). Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(c) — WIG (Wing-In-Ground) craft on the water — dead astern (stern aspect) https://skippercheck.net/img/colreg/colreg-rule-23c-wig-craft-wing-in-ground-port-quarter-skippercheck.webp?v=1778238614 WIG (Wing-In-Ground) craft on the water under COLREG Rule 23(c), viewed from her port quarter. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(c) — WIG (Wing-In-Ground) craft on the water — from her port quarter https://skippercheck.net/img/colreg/colreg-rule-23c-wig-craft-wing-in-ground-port-beam-skippercheck.webp?v=1778238614 WIG (Wing-In-Ground) craft on the water under COLREG Rule 23(c), viewed from her port beam. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(c) — WIG (Wing-In-Ground) craft on the water — from her port beam https://skippercheck.net/img/colreg/colreg-rule-23c-wig-craft-wing-in-ground-port-bow-skippercheck.webp?v=1778238614 WIG (Wing-In-Ground) craft on the water under COLREG Rule 23(c), viewed from her port bow. Use the visible all-round and side lights, masthead pattern and any day shapes to identify her at sea. COLREG Rule 23(c) — WIG (Wing-In-Ground) craft on the water — from her port bow https://skippercheck.net/colreg-simulator/responsibilities-between-vessels https://skippercheck.net/img/colreg/colreg-rule-18d-avoid-impeding-vessel-constrained-by-draught-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 18(d) — Avoid impeding vessel constrained by her draught. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 18(d) — Avoid impeding vessel constrained by her draught https://skippercheck.net/img/colreg/colreg-rule-18a-power-driven-gives-way-to-fishing-vessel-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 18(a)(iii) — Power-driven gives way to fishing vessel. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 18(a)(iii) — Power-driven gives way to fishing vessel https://skippercheck.net/img/colreg/colreg-rule-18a-power-driven-gives-way-to-ram-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 18(a)(ii) — Power-driven gives way to vessel restricted in ability to manoeuvre. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 18(a)(ii) — Power-driven gives way to vessel restricted in ability to manoeuvre https://skippercheck.net/img/colreg/colreg-rule-18a-power-driven-gives-way-to-sailing-vessel-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 18(a)(iv) — Power-driven gives way to sailing vessel. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 18(a)(iv) — Power-driven gives way to sailing vessel https://skippercheck.net/colreg-simulator/restricted-visibility https://skippercheck.net/img/colreg/colreg-rule-19d-restricted-visibility-target-abaft-port-beam-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 19(d)(ii) — Restricted visibility — target abaft port beam. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 19(d)(ii) — Restricted visibility — target abaft port beam https://skippercheck.net/img/colreg/colreg-rule-19d-restricted-visibility-target-abeam-starboard-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 19(d)(ii) — Restricted visibility — target abeam starboard. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 19(d)(ii) — Restricted visibility — target abeam starboard https://skippercheck.net/img/colreg/colreg-rule-19d-restricted-visibility-target-right-ahead-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 19(d) — Restricted visibility — target right ahead. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 19(d) — Restricted visibility — target right ahead https://skippercheck.net/img/colreg/colreg-rule-19e-restricted-visibility-close-quarters-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 19(e) — Restricted visibility — close-quarters unavoidable. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 19(e) — Restricted visibility — close-quarters unavoidable https://skippercheck.net/img/colreg/colreg-rule-19d-restricted-visibility-target-on-port-bow-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 19(d)(i) — Restricted visibility — target on port bow. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 19(d)(i) — Restricted visibility — target on port bow https://skippercheck.net/img/colreg/colreg-rule-19d-restricted-visibility-target-on-starboard-bow-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 19(d)(i) — Restricted visibility — target on starboard bow. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 19(d)(i) — Restricted visibility — target on starboard bow https://skippercheck.net/colreg-simulator/traffic-separation https://skippercheck.net/img/colreg/colreg-rule-9a-narrow-channel-keep-starboard-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 9(a) — Narrow channel — keep starboard. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 9(a) — Narrow channel — keep starboard https://skippercheck.net/img/colreg/colreg-rule-9e-narrow-channel-overtaking-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 9(e) — Narrow channel — overtaking. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 9(e) — Narrow channel — overtaking https://skippercheck.net/img/colreg/colreg-rule-10c-tss-crossing-at-right-angles-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 10(c) — TSS — crossing at right angles. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 10(c) — TSS — crossing at right angles https://skippercheck.net/img/colreg/colreg-rule-10b-tss-joining-at-shallow-angle-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 10(b)(ii) — TSS — joining at a shallow angle. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 10(b)(ii) — TSS — joining at a shallow angle https://skippercheck.net/colreg-simulator/vessels-in-sight https://skippercheck.net/img/colreg/colreg-rule-13-and-17-being-overtaken-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 13 / 17 — Being overtaken — stand-on duty. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 13 / 17 — Being overtaken — stand-on duty https://skippercheck.net/img/colreg/colreg-rule-15-crossing-give-way-vessel-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 15 / 16 — Crossing — you are give-way. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 15 / 16 — Crossing — you are give-way https://skippercheck.net/img/colreg/colreg-rule-17a-crossing-stand-on-vessel-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 17(a)(i) — Crossing — you are stand-on. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 17(a)(i) — Crossing — you are stand-on https://skippercheck.net/img/colreg/colreg-rule-14-head-on-situation-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 14 — Head-on situation — both alter starboard. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 14 — Head-on situation — both alter starboard https://skippercheck.net/img/colreg/colreg-rule-13-overtaking-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 13 — Overtaking. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 13 — Overtaking https://skippercheck.net/img/colreg/colreg-rule-12-sailing-vs-sailing-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 12 — Sailing vessel meeting sailing vessel. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 12 — Sailing vessel meeting sailing vessel https://skippercheck.net/img/colreg/colreg-rule-17bc-stand-on-last-moment-action-skippercheck.webp?v=1778238614 Bridge-simulator scene under COLREG Rule 17(b)(c) — Stand-on — last-moment action. Captured from the SkipperCheck COLREG / ARPA / AIS bridge simulator. COLREG Rule 17(b)(c) — Stand-on — last-moment action