Larry DeCamp
Well Known Member
The plans suggest a tube up the firewall and down through the floor.
The “Rocket” vent is two coils at the root rib and out the floor.
There is testimony here that pressure under the wing will feed demand for air through a scarfed tube end, flush cut or even a static port shaped tip.
There is testimony here that a “mud dauber plug” can create a visual collapse of the tank skin.
apparently, any fuel that leaves the tank into the vent system will either go out into the air or sit in a tube at a depth of up the the thickness of the wing. And history suggests that pump suction is sufficient to pull air as needed through the liquid without hurting the tank. I assume solid slugs of fuel are not drawn back into the tank, but rather bubbles sneak by through or over the liquid. This logic also questions how a full tank in the hot sun has a place to overflow into unless the fuel in the coils has evaporated previously. Does the fuel ever go back in the tank ?
So why all the tubing artistry, what am I missing ?
The “Rocket” vent is two coils at the root rib and out the floor.
There is testimony here that pressure under the wing will feed demand for air through a scarfed tube end, flush cut or even a static port shaped tip.
There is testimony here that a “mud dauber plug” can create a visual collapse of the tank skin.
apparently, any fuel that leaves the tank into the vent system will either go out into the air or sit in a tube at a depth of up the the thickness of the wing. And history suggests that pump suction is sufficient to pull air as needed through the liquid without hurting the tank. I assume solid slugs of fuel are not drawn back into the tank, but rather bubbles sneak by through or over the liquid. This logic also questions how a full tank in the hot sun has a place to overflow into unless the fuel in the coils has evaporated previously. Does the fuel ever go back in the tank ?
So why all the tubing artistry, what am I missing ?