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David Leonard wrote:
I have had my 68" prop up to 6600 Engine RPM (2.17 PSRU) at 17k' (about 15 deg OAT - which makes the speed of sound slower.. i.e. increases you mach #) and didn't notice anything unusual. Then again, I wouldn't know the sound of supersonic tips if I heard them. I regularly cruise at 6000 RPM.
-- Dave Leonard
Turbo Rotary RV-6 N4VY
http://members.aol.com/_ht_a/rotaryroster/index.html
http://members.aol.com/_ht_a/vp4skydoc/index.html
You've heard it, even if you didn't know it. Any AT-6/SN-J on the back side of a loop at an airshow.
Charlie
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