ggower_99(at)yahoo.com
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 Posted: Tue Feb 21, 2006 9:48 pm Post subject: Crosswind - The First Step Toward the Next Flight Altitude |
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Hello Frank,
I will like to learn more about it, any leads?
We do fly here with autogas our 701 (and several other airplanes with 912S engines, Kitfox, QS GT 500, etc) from 6,000 to around 12,000 ft ASL (depending on direction of flight) because here most area around has 10,000 plus mountains and "low land" is 4,000 ft ASL...
How do gasoline boil with altitude???? (limited english and unkown subject.)
Thanks a lot.
Saludos
Gary Gower.
"Hinde, Frank George (Corvallis)" <frank.hinde(at)hp.com> wrote:
This is not ideal but probably workable because the wing tanks are
feeding the header.
What is happening here is the vacuum in the tank (vented to a low
pressure area above the wing) is preventing the fuel from flowing
downhill.
You then turn on the pump and suck on the bottom of the fuel to get it
moving.
"Vacuum" and "suck" are not good terms for a fuel system....If this was
a high altitude plane I can guarantee you would be boiling fuel in the
tank and potentially vapour locking a pump.
Not an ideal setup but workable because 701 won't normally go that high
and you are not feeding the engine directly from the wing tanks.
If this was a direct feed I would want a better venting system.
Farnk
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