Re: 747 hump

Date:         17 Sep 97 02:49:13 
From:         michael piersdorff <>
Organization: Industry Canada
References:   1 2 3
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Marc Schaeffer wrote:
> Hold on, do you state that if they would knock off the hump -- which
> would result in a smaller front area -- fuel consumption would increase?
> Is this due to the fact that the 747 fuselage isn't a tube but more an
> elipse ?

No, but once the hump is there, longer is better than shorter (to a
point) because of the area rule (same thing that drove some fighters and
LearJets to Coke bottle shaped fuselages).  And yes, fuselages do
produce lift, although not much in comparison to wings.