"Scott Skylane" wrote in message
...
Mike Rapoport wrote:

wrote in message
news:nfKod.2604$6m2.1574@trnddc04...

On 22-Nov-2004, "Jim Burns" wrote:


On short hops of 1 hour or less we're seeing fuel burns of 20 gallons
per
hour, longer hops we see 24 gallons at 24 squared and 155kts true. Push
everything forward and we see 175 knots true at around 6000 ft and fuel
burns of 27 gallons per hour. Surprisingly close to book numbers for a
38
year old airplane.

So, at the high end of the power/fuel consumption curve you are gaining
20
kts TAS for only 3 gph? That's incredible! In my relatively efficient
Arrow I gain only about 6 kts TAS for about 2 GPH going from 65% to 75%
power. How do you do it?

--
-Elliott Drucker


27GPH-20GPH=7GPH
Huh!?! Are my eyes funny, or doesn't his original post reference *24* GPH
at 155 kts vs. 27 GPH at 175 kts?

inquiring minds...
Scott Skylane

You're right. I guess it is my eyes which are out of whack. They saw
20GPH which is the "short hop" number. Now the numbers make even less sense
since I would normally expect to see "short hop" fuel flow higher than the
"longer trip" fuel flow and he is also claiming a 13% increase in speed with
a 13% increase in fuel flow. I suspect that he uses the mxture lever on
some flights but not others

Mike
MU-2