Inverting a 3300a w/Bing carb.

Has anyone had any issues inverting for a roll or loop? 

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Permalink Reply by Bob Simmons on July 11, 2021 at 7:37pm

A CH 750 can't do rolls or loops, so, it's no problem for me. ;-)

The Bing has a float bowl, so I doubt it could handle inversion for any appreciable time. The AeroInjector for the 3300 is supposed to be good for short duration inversion and negative g maneuvers. Don't know about the Rotec carb.

Permalink Reply by John Austin on July 12, 2021 at 10:12am

Same here - have a STOL 750 so no aerobatics, but I do have a AeroInjector TBI carb on my 3300.  Since it works best strictly gravity-fed, the mech. fuel pump is removed on my engine.  When testing the carb, I did a series of push-overs stepping down from altitude and induced enough neg G's each time to lift me in my seat, but obviously could only sustain that for a few seconds at most with each push-over! However, the 3300 never missed a beat.

John

N750A

Permalink Reply by John Burns on July 13, 2021 at 9:06am

I happen to notice yesterday that the current Jabiru manual prohibits negative G maneuvers based on the oiling system.  This is in the newest Generation 4 manual.

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