Subject: Counter-rotating Props
From: Rotary Engine
Date: 6/24/2009, 5:05 PM
To: AAA Put this in the To box




AIRMASTER AND VESTA

The hard part may be in finding the Sun to Planetary gear that is the same
ratio, and gives counter rotation, but it appears to have the fewest
physical obstacles to the  desired modification. I willl also ckeck out
AIRMASTER
AND VESTA.

About the "one engine out" thing - the P-38 has two rudders (directly in
the prop thrust line), and there is always "cheating" and building them a
little over-size. This is the case with the cockpit that came out 21 3/4"
wide
at 60%. I will have to cheat there to get a minimum of 24" width. At 6' 7"
and 280 lbs, I think I will have to do a wood mock-up, just to be sure.

I knew I could count on super-terrific ideas from you guys! Already a
wealth of stuff in just 7 replies so far!     Bernie.



Hi

On the scaling wouldn't be easier to do 65% scale or 66.2% according to my
math's for a 24" cockpit width and larger rudders with longer arm as well.

Or is 60% scale a magic number for other reasons?

Just a thought.

60-65-66.2 or any scale P36, would be brilliant anyway.

Clive C




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