What is wrong with this picture?

[robtek]

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.

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.