Colregs Questions and Answers (Q & A)

Rule 14

Head-on situation

The answers can be found in the respective Rules and Paragraphs in the book"International Regulations for Preventing Collisions at Sea (Colregs) by Capt. Pierre Deseck and/or in the Colregs Presentation (on DVD), also by Capt. Pierre Deseck

Q = Question; A= Answer


Q 14-1
What action shall two power-driven vessels take to avoid collision when they are meeting on reciprocal or nearly reciprocal courses ?

A 14-1
Rule 14 (a) and Par. 14.1, Application and action to be taken, second paragraph.

Click on head-on situation for a summary

Click on head-on situation for an animation


Q 14-2
Is Rule 14, Head-on situation applicable to sailing vessels ?

A 14-2
Rule 14 (a) and Par. 14.1, Application and action to be taken, first par­agraph.
Click on sailing vessels for a summary


Q 14-3
When are two vessels meeting on reciprocal or nearly reciprocal cours­es, by day and at night ?

A 14-3
Rule 14 (b) and Par. 14.2, When are two vessels meeting on reciprocal or nearly reciprocal courses.
Click on reciprocal courses for a summary


Q 14-4
What should you understand by nearly reciprocal courses ?

A 14-4
Par. 14.2, When are two vessels meeting on reciprocal or nearly recip­rocal courses, second paragraph.


Q 14-5
What must you do if you doubt as to whether an oncoming vessel is meeting on a reciprocal or nearly reciprocal course or not ?

A 14-5
Rule 14 (c) and Par. 14.3, In case of doubt.


Q 14-6
How great should alteration of course be, and to which side, in order to create a clear avoiding action ?

A 14-6
Par. 14.3, In case of doubt, fourth paragraph.


Q 14-7
When you alter your course positively to starboard for a head-on en­counter, what action should you expect from the other vessel ?

A 14-7
Par. 14.3, In case of doubt fifth paragraph.


Q 14-8
You see another vessel slightly to starboard (more than half a compass point) and alternately you see her green and both sidelights. What should you do to avoid risk of collision ?

A 14-8 
Par. 14.3, In case of doubt sixth paragraph.


Q 14-9
Explain what you understand by the saying:
    Green to green and red to red, perfect safety go ahead.

A 14-9
Par. 14.3, In case of doubt seventh paragraph.


Q 14-10
What should you avoid by all means when you take avoiding action for a head-on en­counter ?

A 14-10 
Par. 14.3, In case of doubt eight paragraph.


Q 14-11
When you alter course for another vessel which appropriate sound sig­nal should you give ?

A 14-11 
Par. 14.3, In case of doubt, ninth paragraph.

About 1500 slides and 50 animations are available on our DVD Colregs Presentation which can be purchased online (click on books or read the books).