Apparently the CH 640 is a scaled up 601.
 The 601 span is about 25 feet while
 the 640 span is 31 feet 6 inches.


 Paul Lamar

That's exactly why I am going with a Corvair engine. A one rotor
doesn't make me very comfortable, thinking about redundancy although I
have to admit, the pistons do not do a lot in that respect either.
Reason why I am putting a BRS in the plane  :-)


Alfonso


At least it is horizontal opposed. I would make sure I had
a CHT gage in there. When you get it weigh it for us.

Paul Lamar

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