[WWI] SPAD 13 Internal fitting

Joel Christy jbarchristy at yahoo.co.uk
Tue Apr 17 10:24:48 EDT 2007

Exacatally! And the aeroplane would have been written off in afew months anyway. IMHO.

Shane Weier <bristolf2b at hotmail.com> wrote:

>On the Memorial Flight aircraft, many of the fittings appear to be plain
>aluminium - would 'period' aircraft be like this, or would they be coated 
>some way?

Why paint aluminium?

Aside from camouflage, which is not relevant for internal fittings, you'd do 
nothing but add weight.

Aluminium corrodes *very* quickly, but the thin coat of oxide that results 
expands and contracts in exactly the same degree as the underliyng metal. 
That means it doesn't flake off like rust on steel, and because it prevents 
further corrosion, the aluminium underneath is effectively protected from 
further corrosion.

IOW - paint would useless or worse and a good engineer/designer/manufacturer 
would leave it bare

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quanvis humile, praeclarum
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