"Short Wave Sportfishing" wrote in message
...
Bob Smith wrote:
"Josh Assing" wrote in message
...
So, a buddy and I were talking -- he said I wasted my money on trim
tabs. I
said I did not.

The conversation revolved around the use of whale tails (foils on the
cavitation plate).

I said that they could help; but would add stress to the outdrive, and
if
something that simple really helped, manufactures would make their
cavitation
plates larger.

What's the general opinion on them?

Our 19 ft CC with 125hp I/O (no power trim) has a Stingray hydrofoil, and
without it, the prop cavitates very easily in a high power turn. A bit
lower planing speed and less bow rise with it, but the reason I keep it
on is mainly cavitation prevention.

I would suspect that the angle of your drive in the turn and prop
selection has more to do with the cavitation problem than the plate.



Angle is not adjustable, since our outdrive (VP 270) needs to be locked in
the "down" position when operating. All three of our props (14x19SS, 14x17
aluminum, 15x15 aluminum) exhibit the same cavitiation upon cornering w/o
the fin. I'm not pro-fin or anti-fin, I just know that this one needs to
stay on our boat.