"It is kind of laughable that the ADRAG coeff. is calculated to a zillion
places :-) It is also interesting that Don Bates and I came up with
more or less the same number for the Cozy.
Other than this it is a great web site. He gets an A.
Paul Lamar"

I think Phill's calculations to a gnat's ass (pun obliquely intended) is his sense of humor. There are too many unqualified non-technical nay-sayers in the canard ranks that attempt to shoot holes in any idea that strays from those laid down by the gods, demi-gods, and psuedo-gods. Phill does not speculate, he does the work.
Yes, it is a good site. I need reference sites like his and fortunately he has run all the numbers for a Cozy with main retracts. We still have two things to figure out... first the optimal choice of turbo setup for our plane.. optimal being whatever we can run at highest cruising altitude without overspeeding anything and doing it with parts that are within reason cost wise. Second, given that engine setup and the rest of the plane properly configured, we need starting specs for a prop. We are leaning very heavily towards making our own prop(s) (assumed as iterative process). Frequently we hear Lycoming advocates discussing the compromise they chose between takeoff/cruise in prop choices. With all the potential of the turbo 13B it should easily exceed the Lycoming's best takeoff scenario so we want to optomize for cruise at altitude. Is this realistic? Basically we feel this is a great plane for getting somewhere, lets configure it that way.
...Chrissi

Consider our variable pitch prop Chrissi. How far are you away from needing one?

Paul Lamar
 
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