On 11/18/2021 8:16 PM, John Gotschall wrote:
BTW my current factory built airplane has no header, will quit upon pump
fail and without warning. Somehow that's ok with the FAA.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
John,
I'm curious as to what factory built airplane you have that has no
gravity feed and a "single" fuel pump system with no backup. Many
"factory" built airplanes with no gravity feed use an engine driven pump
with an electric pump backup.
I switch tanks and pumps every 15 to 20 minutes (only at altitude) and
if a pump quits it's engine out in about 10 seconds. I use both for
T.O. and climb and both for letdown and landing. If one of my pumps
quits at altitude I have backup in about 2 seconds. Those Facut pumps
see to be quite reliable. 800 hours of random use with no problem.
Someone mentioned the lack of talk about a "belly tank". I'm guessing
the reason is why add a big draggy belly tank when you can carry fuel
internal in the wing with no additional drag other than the lift
generated to carry the load.
Larry Flesner
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