[modeleng] Re: Alumin(i)um and lead

Dennis,

>       What was the purpose of the depleted uranium used by Boeing in the
747

It would almost certainly be used for mass balancing of the control
surfaces. This is done to reduce problems with flutter at high speed.
Depleted uranium is useful because of its high density - the balance weights
are smaller and can be fitted more readily in a confined space.

Barrie



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