The proper terminology is anti ventilation plate as it helps to prevent the prop from ventilating to the atmosphere, or sucking in air. Cavitation is something totally different and can happen to a submarines prop several hundred feet below the surface if it spins too fast. Somewhere in time anti cavitation got applied to it and it seems to have stuck and that is what most people refer to it as.
This is really interesting Mumbles. If salnaes hadn’t questioned your spelling
would I have gotten to learn this? Frank stated “Ole Evinrude called it a cavitation
plate”. Seems the Johnson brothers did as well.
Some time ago I read that calling the brass sleeve in a compression fitting a ferrule
is not correct. I don’t remember exactly what name was used. I wouldn’t be surprised
if someone here has that answer as well.
Tubs.
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.