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6 votes
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Is there a reason why the vertical lines of some airplane envelope graphs are not parallel?

This kind of presentation is called a weight vs. moment 'fan chart'. Although the labeled and drawn x-axis is in CG position, it is really calculated in terms of moment (inch-lb). The reference ...
Rob McDonald's user avatar
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2 votes

How much of the empty mass of a typical airliner consists of rivets?

$\def\cm{\rm cm}$ I cannot find authoritative answers. But we can do some ballpark estimates. This is an image of an A320 fuselage. Making a lot of assumptions, but one hopes that they will more or ...
Martin Argerami's user avatar

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