Talk to Ron Johnson at Advanced Ultralights. He runs the F-30 on a
Flightstar and loves it. The engine is rated at 80 hp at 5500 RPM
and has a 1200 hr TBO and 3 year crank warranty.
Fuel consumption is supposed to be 4.5 GPH versus 3.7 GPH for the
912. The weight is 129 lbs. with all the accessories. That is
almost the same as the 582. But you need a high pitch wide blade
prop of about 72" to absorb the power. The engine is much cheaper at
$5775. You probably don't need that much power unless you fly at
full gross or at high altitudes. I have a Hirth 2706 and I will be
very interested in how it performs.
--- In X-Air_Ultralight_Aircraft@..., coult@i... wrote:
Would anyone consider it a good idea or possible to fit a Hirth
F30,
2 stroke, 4 cylinder 80 HP engine to an Xair? Would the fuel
consumption be much higher than a Rotax 582 or could the gearing be
set up to have the engine running at a lower RPM considering the
higher HP?
Regards
Coulter.
