Re: Questions about the DH Comet

Date:         17 Sep 97 02:49:24 
From:         rhett lennox <>
Organization: Customer of Access One Pty Ltd, Melbourne, Australia
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David Lesher wrote:
> By some measures, the entire field of fatigue behaviour started
> only a few years before, when the Allies tried to figure out why
> brand new Liberty Ships in the North Atlantic were suddenly
> cracking in half and sinking.

Actually this was not a fatigue problem, is was caused primarily (sp?)
by the change in metallic structure of the steel at cold temps. This
makes the steel behave as a brittle metal rather than the familiar
ductile one.

> The history of any technological development is strewn with the
> victims of its failures along the way. This is no exception.

Aint that the truth

Rhett Lennox B.E (Aero)
"Frankly my dear, I don't give a damn!"