BTW I skinnied up the nose.
This rad IS 18 inch high and 30 inches long overall.

Here is all I have on the firewall shape so far.

The contoured SS tubes should be in any day (Larry?).

Paul Lamar

Hi,
Could you mount the radiator parallel to the fuselage centerline, angled out
at the top at the angle of the mount tube that goes to the firewall. Cold
air duct inside between the rad and the engine, then hot out the outside.
Would a NACA duct mounted backwards work on the side of the cowl?

Dale Davies


Yes that will work. No point in the NACA duct backwards. Adjustable louvers work
the best.

Paul Lamar