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I saw a turbine made in Argentina specifically for experimental aircraft use. Even had a gear reduction down to 2500 rpm. Idle at 5 gph
and 100% at 10 - 12 gph for 250 HP range at only 85 lbs.
Bart D. Hull, bdhull@inficad.com
The BSFC on my O-320 engine is between .42 at its best up to .50 at 10gph, 120BHp which is 75 percent power. George Braly has obtained down to .39 BSFC on IO-550s at 265BHp. http://www.Thielert.com/ claims a BSFC of .33 partly because of a 19/1 compression ratio.
The claim above implies a .28 to .34 BSFC. The BSFC is proportional (given other parameters stay the same) to compression. Cheap turbine engines, without many compression stages, do not have high compression ratios. Therefore I would guess that the turbine above has a BSFC of between .60 and .70.
If what I guess is correct, the fuel burn will be between 21 and 25 GPH at 250BHp.
There is no magic carpet.
--
Lorn H. 'Feathers' Olsen, MAA, DynaComm, Corp.
248-478-4301, mailto:lorn@dynacomm.ws
LNC2, O-320-D1F, N31161, Y47, SE Michigan
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