Tommy, I don' t think you will have a problem with cooling, However I would recommend you mount your engines on a test stan inverted and test run them to check for reliability. You might need a glow driver to make them reliable inverted. I don't know for sure depending on the engines if you will need the GD. But I would highly recommend you test them Inverted. Reliability in flight is really important and when you throttle back to land you don't want one to quit.

Really nice bomber. I am considering possibly one for my next multi. Bomber or C47 gunship.

I have just about completed my Vintage R/C Nobler. See under vintage if you would like to see the progress.

Cold day here,, 55 high winds 15 G 25 small craft warnings out.. So no flying or boating. This is the New Orleans area so Mardi Gras parades all over town tonight. Might as well go to a parade,, can't fly.[]