[modeleng] Fw: Re: Alumin(i)um and lead
- From: "BarriePurslow" <Barrie@xxxxxxxxxxxxxxxxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Tue, 1 Mar 2005 22:32:03 -0000
Alan,
I have sent this twice but it has not appeared. Is there a problem?
Barrie
----- Original Message -----
From: "BarriePurslow" <Barrie@xxxxxxxxxxxxxxxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Sunday, February 27, 2005 7:40 PM
Subject: Re: [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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