Now, claude, Get ahold of a "J" tip blade....which would help prevent yhe mass of air from flowing off the end of the prop, making it more efficient.
I was interested in the comment about square tips vs rounded tips...having an effect on the vortex... The reason Fred put on Twin tails was to keep the vertical stabilizers and rudders out of the propwash..... Fly Safe - Have Fun Regards, Harry Francis 93530 Blacksburg, VA.
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