I dunno, Brenda, he must be around here somewhere, but I looked up
Posted by kerrit on 9/21/2005, 14:36:58, in reply to "Tom, You there???"
screw in conjunction with boats and got results for triple and quadruple! I should maybe run away fast... LOL!
but screws are simply another way to refer to the propellers. You knew that. I think submarines maybe have twin screws. Must be an awful big boat to have quads...