What day shape would a vessel at aground during daylight?
Day shapes
| Navigation status | Day shape | Restriction |
|---|---|---|
| Vessel under sail and power | Cone | > 12m |
| Anchored | Ball | > 7m (not in channel) > 20m (in anchorage) |
| Constrained by draft | Cylinder | |
| Aground | 3 balls (vert. line) | > 12m |
What day shape must a vessel not under command show?
Not under command two spherical shapes in a vertical line where they can best be seen; and. when making way through the water also normal sidelights and a sternlight (not shown in the examples below).
What is an example of a vessel not under command?
For example, a vessel not under command is supposed to display different lights when underway and when making way. Also a vessel need to sound different sound signals when underway and when making way. So what is the difference between a vessel that is underway and when it is making way.
What shape should be exhibited by a vessel run aground as prescribed by Colregs 1 point?
Rule 30 – Anchored Vessels and Vessels Aground (i) in the fore part, an all-round white light or one ball; (ii) at or near the stern and at a lower level than the light prescribed in sub-paragraph (i), an all-round white light.
What is not under command?
The term “vessel not under command” means a vessel which through some exceptional circumstance is unable to maneuver as required by these Rules and is therefore unable to keep out of the way of another vessel.
How can you identify a vessel not under command?
The term “vessel not under command” means a vessel which through some exceptional circumstance is unable to manoeuvre and is therefore unable to keep out of the way of another vessel, (COLREG).
What day shape is prescribed for a vessel constrained by her draft?
A vessel constrained by her draught may, in addition to the lights prescribed for power-driven vessels in Rule 23, exhibit where they can best be seen three all-round red lights in a vertical line, or a cylinder.
What is the best description of a vessel not under command?
Is drifting vessel not under command?
He explains the rationale: “In the days before AIS, there was no distinction for why a ship was drifting. If a vessel was at sea with its engines idle while its anchors were still firmly housed in hawse pipes, it was considered as being not under command.”
Can you consider a vessel drifting as vessel not under command?
This is the reason why most of them prefer choosing the AIS ‘NUC’ option. However, as has already been explained, a drifting vessel with her engines and steering in perfect working condition can never be considered to be in a NUC situation.
What is the sound signal for a vessel not under command?
A vessel not under command, a vessel restricted in her ability to manœuvre, a vessel constrained by her draught, a sailing vessel, a vessel engaged in fishing and a vessel engaged in towing or pushing another vessel shall, instead of the signals prescribed in paragraphs (a) or (b) of this Rule, sound at intervals of …