Four auto starter solenoids pop the tugboat clutch and 3000 pounds of hot rod is fired through quarter-mile at over 180 mph on gas. Anybody who has been around the drag strips long knows that /I ...

In 1945, preliminary design began on Allison's first turboprop engines. One was the T40 (Allison Model 500), which consisted of two T38 power sections driving co-axial contrarotating propellers ...

General Motors Corp., long harassed by controversy over its Allison aircraft engine, last week distributed a booklet packaged in heavy cellophane, and titled: Airplane Power (with special reference to ...