TWO STEAM SHIPS PASSING.

No rule has been made to meet this case, and this diagram is intended to show that no rule is necessary.

RED AHEAD.

DIAGRAM 3.

A, a steam ship, sees the RED and WHITE lights only of another steam ship, B, ahead end on or nearly end on to herself.

The ship carrying the RED light B must be passing to the PORT of A in the direction indicated by the RED arrows 1 or 4, or in some intermediate direction.

. The left hand or port side of the ship carrying the RED light B must, therefore, be end on or nearly end on with A, and for this reason A and B cannot be meeting at all.

The ship A and the ship carrying the RED light B are not "meeting end on or nearly end on, so as to involve risk of collision," nor are they "crossing so as to involve risk of collision."

Therefore, as the rules only refer to cases in which "two ships are meeting end on, or nearly end on, so as to involve risk of collision," or in which "two ships are crossing so as to involve risk of collision," no rule applies to this case.

The only way in which A can get into collision with the vessel showing the RED light ahead is by starboarding to it, and there is therefore no necessity to make a rule to tell the master of A not to starboard in such a case.

A is not required by the regulations to PORT her helm to a RED light ahead, nor is she required by the regulations to do anything else.

A can PORT if she chooses, as that will take her further from B.

TWO STEAM SHIPS PASSING.

No rule has been made to meet this case, and this diagram is intended to show that no rule is necessary.

GREEN AHEAD.

DIAGRAM 4.

A, a steam ship, sees the GREEN and WHITE lights only of another steam ship B, ahead end on or nearly end on to herself.

The ship carrying the GREEN light B must be passing to the STARBOARD of A, in the direction indicated by the GREEN arrows 1 or 4, or in some intermediate direction.

The right hand or starboard side of the ship carrying the Green light B may, therefore, be "nearly end on" with A, but as the RED light of B is not seen, A and B cannot be meeting at all.

The ship A and the ship carrying the GREEN light B are not 'meeting end on or nearly end on so as to involve risk of collision," nor are they "crossing so as to involve risk of collision."

Therefore, as the rules only refer to cases in which "two ships are meeting end on, or nearly end on, so as to involve risk of collision," or in which "two ships are crossing so as to involve risk of collision," no rule applies to this case.

A is not required by the regulations to port her helm to a GREEN light ahead.

The only way in which A can get into collision with the vessel showing the GREEN light ahead is by porting to it, and there is, therefore, no necessity to make a rule to tell the master of A not to port in such a case.

A can STARBOARD if she chooses, as that will take her further from B.

If A ports to the GREEN light, she must inevitably run across the path of the vessel carrying the Green light.