The issue we deal with is generating good thrust in the RPM range of most park flyer electric motors. That's why they have big paddle-shaped blades. A scale profile Ham-Std. for your corsair would not develope any appreciable thrust.

There is an English company making adjustable pitch props that use a machined Aluminum hub 2, 3, or 4 blade with more scale-like blades, but you'll be dropping about $60 for the setup. I'll go home and look for the name and edit this message...

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