Progress is fine, but it's gone on for too long.
with apologies to Ogden Nash...
Sunday, April 5, 2015
Rools Royce Avon turbojet
This engine designed postwar and put into production in 1950, powered the first transatlantic jet flight (in a Canberra) and transatlantic jetliner flight (in a Comet). The aero version was discontinued in 1974 after 11,000 had been built.
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