RE: 1/4 scale Spitfire ARF
Just saw your pics on the YT forum.
Have you thought about channeling cooling through, and out of the wing ?
I was thinking of making intake holes on the top side of the wing inside the fuselage, and then make exhaust holes hidden under the large plastic radiators, and only open up the rear part of the plastic radiators and hope air would be vented out that way too.