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Old Apr 25, 2010, 01:03 PM
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Joined Dec 1996
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Originally Posted by AIR SALLY View Post
Ed your drawings are right on this SW f-20 ,,,where is your cg? i dont see it on the drawings. these are very helpful for making templates for the ducting .i like the airfoil too . the wing span might be short the full sale had 26.8 or 27 foot WS. im reserching if that was with the missle rails or not
Well I haven't flown it of course to verify but using the wing to the center of the fuselage plus the LEX/LERX and the fuselage up to the radome line I come up with a 25% cg of 58mm from the leading edge of the WING at the root (where a balsa leading edge would intersect with the fuselage side if there was no lex....from the intake it would be 175mm on my drawing. 30%cg would be 72mm from the aforementioned spot, or 187mm from the front of the intake.

I think the 3view I used was from this book I've had since the early 80s, World Air Power, or maybe it was from Janes All The World's Aircraft.
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