I just can’t resist… Perhaps the best way to stop this problem would be to cut off the head of the rudder as in decapitation. I am betting you meant cavitation and spell check “helped” you out. Cavitation is when water swirls into a funnel and air is sucked into the prop field and instead of pushing water it is pushing air/water mix.
Joe McCary Aeolus II. #4795, West River, MD www.aeoluswestriver.net joe at photoresponse dot com From: [email protected] [mailto:[email protected]] On Behalf Of Sneddon, Keith - ES/IS. Under power from an inboard, the flow over the rudder is usually at a much higher velocity, and because of that plus the proximity of the prop to the rudder, is very turbulent (small scale phenomena) plus not very organized as per direction (due to swirl, capitation,etc.).
