Originally Posted by Scott Hersha
That removed section may interfere with the starter ring gear/bell housing if it isn’t removed. Our cowlings fit pretty tightly to our spinner backplates by design (3/16” - 1/4”). Being able to keep the front nose of that cowl as far aft as possible, while tilting the aft portion of the lower cowl down first for removal, helps a lot.
It is actually so that the cowl clears the bottom of the spinner more easily. Doesn’t need to be dropped as low before it can move fwd.
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FAA/DAR, EAA Technical Councelor
RV-6A (aka "Junkyard Special ")