FYI - Yesterday I put the tailwheel into a hole in the ground to get a 15
deg. nose high attitude. Because slow flight (near power on stall) will
probably be higher than that, I would have liked to get it a little higher,
but that wasn't easily doable without digging a much larger crater or taking
the tail feathers off, so I decided to make do with a 15 deg. test.
With just a little more than 3 gal. total in the tanks (to minimize head
pressure) I measured a gravity flow rate of greater than 20 GPH at the carb
inlet. That's more than double the Jabiru 3300's maximum possible WOT fuel
usage of approx. 9 GPH, so I think it's reasonable to conclude the engine
will have plenty of fuel even with the nose up a little higher.
For reference, the fuel lines go behind the torque tube and down to a "T"
(and drain) under the baggage area, then forward in a single line to the FW
and through the gascolator, fuel pressure and fuel flow sensors, before
reaching the carb. Photos at http://n254mr.com
Ron
254R
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