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Unread 05-23-09, 05:26 PM
tropical tropical is offline
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Join Date: Oct 2006
Location: Florida
Posts: 146
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Quote:
Originally Posted by jchronic View Post
On our marine mammal surveys, we frequently circle in place for 20-30 mins at a time at 30 degree bank angles, so in light/no wind situations we regularly encounter our own wake. Last year, using a 'straight' 337, we got some pretty good jolts after several circles. This year we've been using a 336 with a Robertson (Sierra) STOL kit and the whole crew seems to think the wake turbulence jolts are much milder than last year (in the 337).

Strictly anecdotal and I wouldn't attempt to explain it aerodynamically, but thought I'd offer the info. In any case, I seriously doubt it'd be worth the cost of a conversion for whatever improvement there might be in the ride.
Joe C.
While you are circling do you have any flaps down? Doesn't the Robertson kit droop the ailerons slightly when flaps are extended?
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