FWIW, I cruised at altitudes between 13,500 and 16,500 all the way to
and from Osh this year. Total time 'on the bottle' was 12 hours.
Used up about 1/3 of a 22 CF Ox tank. Up to 16,500 I never feel the
need or desire for more power. Above that the engine starts to feel a
little tired but still had > 300 fpm climb rate there. Highest
altitude tried so far was 19,500 which was probably the highest usable cruise
altitude. Not really usable to me anyway since that is class A
airspace.
The best thing about the higher altitude cruise was the really good MPG
displayed on the EM2 (>30 mpg) Of course I would go
faster but mpg would not be near that good if I used a turbo.
Price of gas is starting to make it somewhat more important! Every gas
stop was about $100 this year but every one was a C note well spent :
)
Tracy
----- Original Message -----
Sent: Friday, July 28, 2006 11:44
AM
Subject: [FlyRotary] Re:
Test
I'm also toying with this decision, but fortunately in my case I
have
plenty of time to make up my mind. The thing that keeps rattling
around
in my head is that the Cozy I'm building was really intended to fly
high. I see pilots talking about exactly what altitude they start their
oxygen, and it adds fuel to my turbo fire.
What I haven't been able
to quantify is exactly how beneficial the turbo
is in this case -
normalization. It seems you can calculate the numbers
to support either
argument, and you have to weigh your goals against the
pros and cons of
either decision. Sometimes choice is a bad thing.
I guess, in the end,
I will probably install a T04 mainly because I'm
following closely in John
Slade's footsteps, and so far his T04 is
working out. I have enough time
to watch how it continues to perform as
he builds up more hours on it. So
far it seems promising. Eyes and minds
open, I
guess.
Regards,
Chad
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