Originally Posted by
Haraka
... before the fuel vent was placed on top of the fin?
I did not know of the vent at the top of the fin, which I should have thought required really complicated plumbing.
If this photo can be accessed, it shows what I had in mind.
http://www.britmodeller.com/walkarou...ovost-0010.JPG
The vertical fuselage element below the elevator has two circular features. The upper one is I think the white nav light. The bottom one, as near to the ground as can be, is where I expect the vent to be.
I (unreliably) remember that vent being provided with a short wick to hang in the airstream. As a very-non-technician, I would have though a wick would strongly encourage the passing fuel to disengage from the aircraft when otherwise it might be tempted to creep back (forward) up the fuselage