National Defense: Engine News

Many a thoughtful Army airman has lately been disturbed by reports that Britain, whose heavily armed and armored pursuit planes are the world's most formidable, is no longer satisfied with its liquid-cooled Rolls-Royce Merlin engine. U. S. airmen found the report disturbing because the Army Air Corps has gone in up to its ears for a similar engine of similar horsepower —the 1,090-h.p., liquid-cooled Allison.

Fortnight ago, for reasons that no one seemed able to make plain to laymen, the Army laid out another $69,000,000 contract for Allison engines. The Army thus raised its...

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