Coils full of fuel, will they flow backwards ?
A question for the Aero Engineers. Is the pressure differential ( pump suction and/or dynamic air pressure) on a vent sufficient to draw air back past 2 or 3 coils full of gas ?
I used the coils on my RV3 with no problem, however, I did not leave tanks full to expand into the coils.
Frozen condensation in a low spot has real potential. I am surprised the Van design has not experienced that due to the long tube length to hold damp air . Apparently the pump and dynamic pressure can draw air past some amount of water head .
That said, my current project has a tube from the vent fitting, slightly down hill to toward the rear spar with a hole out the bottom into the airstream.