Bill Freeman wrote:

Paul,

Too bad this scoop does not take advantage of the
low-drag design info.  This is like a Bf-109 or
Spitfire rad - low diffusion ratio, therefore
high pressure loss thru the core, therefore
high drag.   Will probably cool OK, I would
guess.

I'll second the composite duct comment.

"What an incredible way to make an airplane;
sheets of 'O-too-thin' aluminum joined by
*intentionally* failing  tiny cylinders of
aluminum into holes in the sheets, guaranteeing
thousands of dangerous stress concentrations" . . .  Burt Rutan

He might be biased.    :-)

Bill

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