fuel tank plumbing

On the Champ, wing tanks drain directly into fuselage tank. There's a
valve for each wing tank. If you open that valve before the fuselage
tank has drained sufficiently, gas will spray out the filler cap vent
onto the windshield.

Corky Scott wrote:
On Tue, 25 Jan 2005 13:14:41 -0500, " jls"
wrote:


Well, maybe, but wing tanks on a Taylorcraft are vented with ram-air tubes
on the caps and so is the header tank. In flight those tubes make positive
pressure on the 6-gallon wing tanks and the 12-gallon header tank.

I've seen a few times, too, that the wing tank gets balky emptying into the
header tank during flight, despite the ram-air tubes.


Well if the header tank is below the wing tanks, and the header tank
is vented, what's preventing the wing tanks from overfilling the
header tank as Ed Sullivan suggested?

Does the header tank vent have a checkvalve?

I was picturing the header tank being downstream of the wing tanks and
not being vented. In effect, the header tank is simply a distorted
downstream fuel line.

Thanks, Corky Scott


--
John Kimmel


Naturally, these humorous remarks are all entirely my own opinion, based
solely
on rumor, supposition, innuendo and damned lies, and should be
interpreted in a
spirit of fun. My memory is faulty, also.