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Al
15-Jul-11, 08:56 PM
Did anyone see the one show tonight?

I didn't catch much of it but saw a couple of minutes where some guy is studying owl flight as apparently they have silent flight. One thing he has discovered is that owl's have a frilly edge to the rear edge of their wing. He has done some wind tunnel tests with model aircraft wings and found that by having a frilly edge on the rear of the wing is quieter compared to the hard straight edge usually found on aircraft wings.

I wonder by adding a frilly edge to stators on craft if that may help reduce noise. Also a frilly edge could be fitted to the rear edge of air deflectors if fitted guiding air into the plenum.

Food for thought

daly5546
18-Jul-11, 06:45 PM
You should PM Keith Oakley.

He may have experimented with this already.

Chris

datkins
18-Jul-11, 09:30 PM
maybe Wayne can experiment with frilly edges on his skirt to see it keeps the noise down for claydon.....