Tanks leaking on airplane

[sandybeach]

That little "air gap" in the tank at sea level pressure when you get on the airplane, aircraft climbs, the air pressure is less at altitude, (above 10k feet is where pressurization is needed and aircraft usually don't pressurize internally to above sea level pressures though), still the pressure differential causes the sea level pressure air bubble to expand because it is still a higher pressure even though slight, is enough to push the juice out.

Almost the same principle on the act of lowering pressure on a straw doesn't suck fluid up the straw...the differential pressure pushes the fluid thru the straw

Above picture imagine the yellow cylinder has a cap but that blue pressure is still there (the pressure at sea level), in the airplane the "lower density air" is the little red arrow, slowly pushes the juice out the wick thru the air vent tube and either past the drip tip or out the 510 connector

Hawk, love the diagram. Now if I could just figure out what it means

 

[sandybeach]

Definitely going to depend on Tank design.

i.e. Protank - Bottom wick - Upside down - wick out of liquid.
Vivi - Top wick - Upside Down - wicks Flood - next stop, mouth piece
Ithaka, probably best to leave slightly open and turn upside down.

Expansion is expansion and the only thing that will stop liquid from exiting is keeping it away from the exit.

Having both Scuba experience and learning to Fly single engine, I learned a bit about atmospheric pressure change and effects.

Crx, I do remember learning in PADI class that you shouldn't fly and dive on the same day. But I also think I am the only person on the planet that flunked PADI class. Seriously, I chickened out the last day of class when they threw our gear on the bottom of the pool and said "put it on".

So Vivi Novas should be upright? And does it make a difference if they are attached to an APV or not?

 

[OzarkTroutBum]

Enough is enough!

I have had it with these #$%^@$#$#*(&% leaking tanks on this #$%^@$#$#*(&% plane!

 

[sandybeach]

Hey Oak, it beats the hell out of snakes on a plane, though