Re: Fuel Storage on Airliners

Date:         30 Mar 99 01:53:43 
From: (Gerard Foley)
Organization: The Greater Columbus FreeNet
References:   1
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  or MIME structure wrote:
: 	I found out recently that conventional submarines (as opposed
: to nuclear ones) have a double layered hull and the space between
: the two layers is used to store fuel.  I am wondering if this
: approach is viable for airliners.

: 	Extremely rough back-of-the-envelope calculations seem
: to indicate that if a 747 fuselage had a double jacket with a one-inch
: gap for fuel, the fuel capacity can be increased by roughly 10000
: gallons (about 70000 lbs).  I would guess this is quite a significant
: amount of extra fuel and can potentially increase the range without
: impacting cargo storage or passenger space.

The amount of fuel an airplane can carry is fixed by the thrust of the
engines and the aerodynamics of the design, as well as by the decision on
how much of the maximum gross takeoff weight is to be devoted to payload.
There is generally plenty of space in the wings or other convenient places
for as much fuel as can be lifted economically.