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Fuel Tank Vent

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Radial Skybolt Builder: 220.45% completed
Aug 21, 2006
Reaction score
South Jersey
Assuming that most of us will be going with anon-vented cap... how are others installing their "RAM" air ?

I saw a diagram in Tony B's book Sportplane Construction Techniques. Page 79. It's a tube that has a fitting at the top-rear of the tank, connected to the RAM air line on the outside of the tank. The portion in the tank is also at the top with the opening at the forward -top corner.

Is this what others are doing ? Is that inside tube connected to the inside or just left hanging ?

I assume that the "RAM" air is the same line as the over-flow line.


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