If the vessel was NOT making way, then it would just exhibit the two all-round red lights.
Not under command. Making Way, bows view. (note the lack of a white steaming light)
Not under command. Making Way, port view. (note the lack of a white steaming light)
Not under command. Making Way, stern view. (note the lack of a white steaming light)
Memory Aids - the only ones I can think about relate to men having two red balls - and being out of control (not under command) most of the time. (Apologies to the sensitive...).
Fog Signals Note fog signals are as per sailing vessels - one long blast followed by two short blasts at intervals of not more than two minutes.
Day Shapes A vessel not under command and not making way - two vertical black balls
