On 12/14/2020 7:44 PM, Mark Wegmet via KRnet wrote:
I need to understand how you get reduced
load on the wafs with fuel in the outer wing.
+++++++++++++++++++++++++++++++++++++++++++++++++++++
The outer wing panel is always producing lift during flight, I would
hope, so lets just set the plane on the ground for a moment. At that
point the Wing attach fittings ARE supporting the weight of the fuel as
the landing gear are supporting the aircraft and the WAF's are
supporting the wings. Now lets take off. Now the outer wing panel is
supporting the aircraft and the load on the WAF's is reversed. The fuel
load is supported at the point of lift, not through the WAF's . If I
move that fuel back to the fuselage I have to support that weight
through the WAF's. Some will say "what about a hard landing"? "Will
that stress the WAF's"? My only response is to say if you land hard
enough that the fuel load stresses the WAF's you have more urgent things
to worry about like dragging your a** out of the wreckage. At least you
won't have a fuel tank in your lap. Go with what make you feel good.
Larry Flesner
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