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Old 05-31-2019, 03:15 PM
BobTurner BobTurner is offline
Join Date: Dec 2011
Location: Livermore, CA
Posts: 6,581

I think this idea has some merit for increasing the battery cooling, via convection, when on the ground. I'm not so sure about in-flight. If the area above the new opening has a higher pressure than the exit area from the cowl (between the exhausts), then you will get some cool air over the battery - but at the expense of higher pressure at the exit, which may mean reduced cylinder cooling/higher CHTs. OTOH if the new opening area has a lower pressure than the normal exit area, then you will get additional flow up and out, helping cylinder cooling - but at the cost of running warm air over the battery. I don't know how to find out without actually testing in flight.
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