Quote:
Originally Posted by Flying Pencil
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Standard aircraft design, even at that time, was to eliminate any combustible structure and skin in the engine area. Common safety practice.
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Wright had the problem that the engines for the b29 (R-3350) should deliver 1hp/ibs.
To reach that goal they used magnesium in the engine housing.
The result were that a engine fire usually burned through the main spar of the wing,
with predictable results.