Gary,
Yes, you have the smaller tanks. I pointed that out to you when I
came over to see your plane last winter. They are actually 8 gallon
tanks. I also pointed out that the tanks were marked incorrectly.
The 8 gallon wing tank wire gauges are at the outboard end of the
tanks. The wing has a lot of dihedral, so when the cork gets close to
the bottom of the outboard end of the tank, there is still fuel at the
inboard end of the tank. The feed lines are located in the inboard
end of the tanks, so fuel keeps feeding from the tanks even when the
wire gauge is at the bottom. According to my experiments, when the 8
gallon wing tanks are empty, there is only about 5 oz. of unusable
fuel left in each wing tank.
Syd
On Aug 28, 2009, at 10:57 AM, G. Davis wrote:
I have the smaller wing tanks(7.5 gals I thinnk). I tried to run
them dry yesterday and start using my header tank, which I would
land, and fill the wing tanks to see my useful fuel in my wing
tanks. I flew and flew with the wing gauge flat on bottom, and never
did see my header tank start to go down any. When I filled my wing
tanks(it was almost dark by now), I put in 9.8 gallons. My question
is, are there different cork-gauges for the smaller tanks than the 9
gallon tanks. My wing tanks are marked 9 gallons, but when I removed
one to have it rebuilt by John Wright, it was the smaller size.
Thanks for reading this.
Gary
