Re: Fuel Storage on Airliners

Date:         30 Mar 99 01:53:41 
From:         "David Fielding" <>
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Well, just a few thoughts:

Submarine hulls are built very strong to withstand pressure; they use the
strong structure to store fuel, too. Airplanes have their strongest
structures in the wings, which is where they keep their fuel.

The fuselage of an airplane is made as light as possible, to carry the
design loads and last for the expected number of takeoffs/landings. They
are tough, but the loads are not concentrated like the spars of a wing. Any
excess weight in the fuselage structure would only subtract from the useful
load of the plane. And I imagine that a double-walled fuselage, capable of
holding thousands of pounds of fuel, would weigh far more than the current
cigar tubes.

Anyway, the airliners currently being produced don't seem to lack for fuel
capacity; many spend over 10 hours in flight, on VERY long routes. How much
farther do we need to go?

David Fielding
Good judgement comes from experience. Experience comes from bad judgment.