Originally Posted by koliver
Mark, I have often wondered why there are signs warning of a propellor at the bow, but never at the stern. It seems to me that the bow propellor is the more obvious one, especially if it is electrically operated, as not only can you see the flow of propwash, usually from most angles, but the infernal racket of those things will wake the dead. At the stern, there is frequently very little visible wash if in reverse, and no change in the engine tone when put into gear, so the uninitiated might not notice the turning propellor.
Seems unnecessary, IMHO.
One would be most in danger on the opposite side of the propwash.
Suppose signs on the stern are unnecessary because there will be propellers presumably located there with or without a thruster.