REFLECTOR: 11,500 data for the DH engine

[Jim Agnew]

A good Diesel is about 30% more efficient than a standard gas engine (auto)
given the lower efficiency of the aircraft engine 36% would sound about right. 
Remember that these numbers are based on VOLUME burned e.g., gallons not weight
since diesel is denser.

Jim
--- Alex Balic <alex157 at pwhome.com> wrote:
> Yea, that should be about right- diesel fuel has more energy per gallon
> then 100 LL and the direct injection process by design allows it to run
> at max efficiency (no throttle plate)
> 
> -----Original Message-----
> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
> Behalf Of Grigore Rosu
> Sent: Thursday, May 12, 2005 7:58 AM
> To: reflector at tvbf.org
> Subject: REFLECTOR: 11,500 data for the DH engine
> 
> 
> Just noticed that Deltahawk published (yesterday) airspeed and fuel flow
> 
> data for their DH160-equiped Velocity flying at 11,500 altitude.
> 
> To me, as a non-expert in engines, that data seems just amazing:
> 
> > ... at 145 KTAS and 11,500 feet MSL the DeltaHawk is burning only 3.81
> 
> > GPH or more than 36% LESS fuel than the IO-360 ...
> 
> Grigore
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James F. Agnew
Jim_Agnew_2 at Yahoo.Com
Tampa, FL
Velocity 173 Elite Aircraft Completed & Flying