Science: Flying Fibers

Britain's airplane designers are hot on the trail of something new: plastic airplanes. Last week the Board of Trade was talking up an all-plastic wing of triangular "delta" shape, which was developed by the Ministry of Supply and will be exhibited in May at the British Industries Fair. The wing is black, shiny, and made mostly of felted asbestos fibers impregnated with a synthetic resin. Preliminary tests indicate that the material will stand the heat developed by the high speeds for which delta wings are designed. Tests of strength are encouraging too.

The wing is made by a simple low-pressure molding process...

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