Gilles
the duct needs to be properly designed for efficient, low drag cooling
too. Several XS builders did redesign the duct with noteworthy results.
Bob Berube might enlighten us if he's still listening?
Graham
Gilles Thesee wrote:
> In our 914 project, I took advantage of the warm air behind the
> radiators to warm the cockpit. Simple, litght and efficient, and since
> the radiator duct is separate from the engine compartment, zero CO ppm
> were found during flight tests.
> You need a properly designed radiator duct, though.
>
> Regards,
> Gilles Thesee
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