Hummer vs Skylane

On 14-Jul-2005, "Paul kgyy" wrote:

My low wing Arrow gets about 14mpg at 75%, 100 ROP, 175 mph. If I'm
willing to accept 150 and run LOP, I can get it all the way up to 16
mpg.

175 mph = 152 kts. I presume you have a Turbo Arrow, since the top cruise
speed (75%) for a normally aspirated version is around 141 kts.

Our normally aspirated Arrow IV cruises at 135 kts, 65%, 9.4 gph (just LOP)
at around 8000 ft. That works out to 16.5 statute mpg. Out of curiosity, I
recently compared fuel consumption for an extended XC with what my Dodge
Caravan (which gets about 22 mpg highway) would have consumed for the same
trip by Interstate highways. The numbers came out pretty close: 199 gallons
of avgas for the Arrow vs. 187 gallons of mogas for the Dodge. The kicker
is that the round-trip highway mileage would have been 4134 sm compared to
3515 great circle sm.

Yes, the avgas cost maybe $120 or so more than the mogas would have, but in
the Arrow all of the legs between destinations were less than a day, while
by car I would have had to pay for several nights' lodging on the way. And,
I figure my time is worth more than the few pennies per mile extra it costs
to get there in one third the time (or less) by air.
--
-Elliott Drucker

On 7/14/2005 08:54, wrote:

On 14-Jul-2005, "Paul kgyy" wrote:

My low wing Arrow gets about 14mpg at 75%, 100 ROP, 175 mph. If I'm
willing to accept 150 and run LOP, I can get it all the way up to 16
mpg.

175 mph = 152 kts. I presume you have a Turbo Arrow, since the top cruise
speed (75%) for a normally aspirated version is around 141 kts.

Our normally aspirated Arrow IV cruises at 135 kts, 65%, 9.4 gph (just LOP)
at around 8000 ft. That works out to 16.5 statute mpg. Out of curiosity, I
recently compared fuel consumption for an extended XC with what my Dodge
Caravan (which gets about 22 mpg highway) would have consumed for the same
trip by Interstate highways. The numbers came out pretty close: 199 gallons
of avgas for the Arrow vs. 187 gallons of mogas for the Dodge. The kicker
is that the round-trip highway mileage would have been 4134 sm compared to
3515 great circle sm.

Yes, the avgas cost maybe $120 or so more than the mogas would have, but in
the Arrow all of the legs between destinations were less than a day, while
by car I would have had to pay for several nights' lodging on the way. And,
I figure my time is worth more than the few pennies per mile extra it costs
to get there in one third the time (or less) by air.

Plus ... you're flying rather than driving! ;-)

.... a bargain at twice the cost

--
Mark Hansen, PP-ASEL, Instrument Student
Sacramento, CA

On 14 Jul 2005 07:08:34 -0700, "Paul kgyy"
wrote:

My low wing Arrow gets about 14mpg at 75%, 100 ROP, 175 mph. If I'm
willing to accept 150 and run LOP, I can get it all the way up to 16
mpg. But I don't own a car.

175mph is motoring for an Arrow. T-Arrow? Or do you have speed mods?

I typically get better speeds than that at 65% when over 10000 ft in my
turbo T tail. Typically 16mph, and 180 to 200 mph TAS. Its really fun at the
end of a trip when you cut the throttle way back, and cruise down at Vno
while sipping gas.
My E6B says that I can get 175mph at 5000 ft and 20C when my IAS is 140 kts,
and I don't even need oxygen.

"Nathan Young" wrote in message
...
On 14 Jul 2005 07:08:34 -0700, "Paul kgyy"
wrote:

My low wing Arrow gets about 14mpg at 75%, 100 ROP, 175 mph. If I'm
willing to accept 150 and run LOP, I can get it all the way up to 16
mpg. But I don't own a car.

175mph is motoring for an Arrow. T-Arrow? Or do you have speed mods?

If I flew that slowly, I'd fall out of the sky!

"bill hunter" wrote in message
...
Typically 16mph,

It's a 69 model, normally aspirated, 200 hp, no speed mods. I can get
175 if I'm alone on board, 7000 ft and run "best power" at 75% and
about 100 ROP. The 69-71 models were the fastest. Earlier ones had
180 hp, and starting in 1972 they made them bigger but used the same
200 hp engine.

IMHO the H1 Hummer looks good but the H2 does not.

Mike
MU-2


"Newps" wrote in message
...


Guy Byars wrote:
I just realized that my Skylane gets about the same gas mileage as a
Hummer.
I burn about 13gal per hour and go about 130 knots... 10nm per gallon, or
11.5 miles per gallon. Now granted I am going in a straight line, and 3
times as fast, but still that is awful mileage. Now my old Cessna 140
did
a lot better, 105mph at 5gph... more like about 20 miles per gallon.

But the 182 looks good while converting all that money to noise. The
Hummer is a god awful looking contraption. More befitting a low wing
driver.

And to top it off this was the annual work party weekend at our
wilderness airstrip about 40 SE of Kalispell. I am this close to
selling my 182 and buying an S35 Bonanza that was there. I am looking
at some performance numbers now and if the Bo doesn't give away too much
short field performance I am going to buy it.



Mike Rapoport wrote:

IMHO the H1 Hummer looks good but the H2 does not.

Mike
MU-2


"Newps" wrote in message
...


Guy Byars wrote:

I just realized that my Skylane gets about the same gas mileage as a
Hummer.
I burn about 13gal per hour and go about 130 knots... 10nm per gallon, or
11.5 miles per gallon. Now granted I am going in a straight line, and 3
times as fast, but still that is awful mileage. Now my old Cessna 140
did
a lot better, 105mph at 5gph... more like about 20 miles per gallon.

But the 182 looks good while converting all that money to noise. The
Hummer is a god awful looking contraption. More befitting a low wing
driver.

Newps wrote:
And to top it off this was the annual work party weekend at our
wilderness airstrip about 40 SE of Kalispell. I am this close to
selling my 182 and buying an S35 Bonanza that was there. I am looking
at some performance numbers now and if the Bo doesn't give away too much
short field performance I am going to buy it.

Do a W&B/C&G comparison for full and empty weights before you sell the 182.

john smith wrote:

Newps wrote:

And to top it off this was the annual work party weekend at our
wilderness airstrip about 40 SE of Kalispell. I am this close to
selling my 182 and buying an S35 Bonanza that was there. I am looking
at some performance numbers now and if the Bo doesn't give away too
much short field performance I am going to buy it.


Do a W&B/C&G comparison for full and empty weights before you sell the 182.

That's one of the items I'm going to do. The Bo has more useful load
although I don't have to run CG numbers on my 182. It can't be loaded
out either the front or rear CG, full tanks or empty. The Bo has a much
larger baggage area and I really like the ability to remove the rear
seats individually.