Re: Flying: Performance: Speed kit.

[Graham Singleton <grasingleton@avnet.co.uk>]

 <3C1BBA39.8DA738AA@attbi.com>



>   The 1/8" thick flap hinges just will not have much adverse effect (drag 
> coeff. about 1.0).  A
>fairing's drag is its frontal area, multiplied by its drag
>coefficient, and too wide requires an good aerodynamic design just to
>break even.
>Fred F.

However, there are two of them, one behind the other but not quite in line. 
I would guess that the interference effects may well add up to more than a 
straight addition.

graham