This is a tricky one! I like the wording here.
Deck
Expired / Rules of the Road: BOTH INTERNATIONAL & INLAND You are in charge of a stand-on vessel in a crossing...
Discussing this exam question.
At 1.5 miles, it could be possible that the other vessels intentions are not clear. If they are not clear, the danger signal would be appropriate. 1.5 miles ahead and to port of an aircraft carrier or fast moving oil tanker is not the right place to be. There are situations where a danger signal could be appropriate here.