Φώτα και σήματα — Συνοπτικός πίνακας
Κάθε παραλλαγή των κανόνων 23-30 σε ένα μέρος. Κάθε γραμμή δείχνει τα φώτα από αριστερά, δεξιά, εμπρός και πίσω, συν το ημερήσιο σήμα — σχεδιασμένο για γρήγορη επανάληψη πριν από εξετάσεις.
Κανόνας 23 — Μηχανοκίνητο σκάφος
Any vessel propelled by machinery while underway. Length governs the masthead arrangement: ≥50 m requires two mast lights, <50 m one, and <12 m may use a single all-round white instead.
Κανόνας 24 — Ρυμούλκηση και ώθηση
A power-driven vessel towing or pushing another. The tug shows extra masthead lights depending on its length and the tow length. Tows >200 m add a diamond day-shape on both vessels.
Κανόνας 25 — Ιστιοφόρο
Which variant applies to you? → Motor running: use the 'engine running' variant (treated as power-driven). → Sail only, <7 m: no permanent lights needed, just keep a white light ready. → Sail only, any size: show 3 separate lights (sidelights + sternlight). If <20 m you may instead use a single tricolour lantern at the masthead — it replaces all three. Optionally (with the 3 separate lights only, never with tricolour) you may add red-over-green all-rounds at the masthead.
Κανόνας 26 — Αλιευτικό σκάφος
Vessels actively fishing with gear that restricts maneuverability. Trawlers (dragging nets) show green-over-white all-round lights; other fishing vessels show red-over-white. Day shape: two cones apex-together.
Κανόνας 27 — Ακυβέρνητο / περιορ. ελιγμού / βυθοκόρηση
Three special categories: NUC (Not Under Command) — unable to maneuver due to exceptional circumstances; RAM (Restricted in Ability to Maneuver) — constrained by the nature of the work; and vessels engaged in dredging or underwater operations.
Κανόνας 28 — Περιορισμένο από βύθισμα
A power-driven vessel severely restricted in its ability to deviate from its course due to its draught relative to the available water depth. Adds three all-round red lights vertically to the Rule 23 lights.
Κανόνας 29 — Πλοίο πιλότου
A vessel engaged on pilotage duty — guiding ships through ports and restricted waters. Identified by white-over-red all-round lights. When at anchor or underway but off duty, it shows only the lights for its length class.
Κανόνας 30 — Αγκυροβολημένο / προσαραγμένο
Anchored vessels show one all-round white light forward (two for ≥50 m); aground vessels add two all-round red lights vertically. Day shapes: one black ball for anchored, three balls in a vertical line for aground.