Chris wrote in message .. .
How do aircraft manufactures determine the maximum gross weight for a
given plane? I know I've come across articles that mention on a cool day
you can go over the max. gross weight by a percentage, I think 20% was
thrown out there but not sure. Then again, on a hot day you might not
get any where near that. Is it determined by a standard temp?
You dontīt know what is the reason for the maximum gross weight
(unless you know the designers). It is dangerous to assume that
take-off performance defines MTOW. MTOW is also the weight that has
been used as the "most critical weight" during the whole design. It
means that MTOW is there when you calculate the structural loads.
There is a reason why it is called _maximum_ take-off weight.
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