Meanwhile the service wanted a 1,500-horsepower engine, double the power of the M60’s engine. It tried two diesel engines, the Daimler-Benz diesel that powered the Leopard 2 and a homegrown diesel built by Teledyne Continental, but the third engine, a gas turbine adapted from aircraft use, unexpectedly gained favor. The gas turbine allowed for quicker startups, faster acceleration, ran without producing smoke, and most importantly was smaller and three tons lighter than its competitors, saving valuable weight. Although the gas turbine would require the Army to stock vast quantities of gasoline (in addition to diesel fuel) on the battlefield, the advantages of the turbine eventually won out.
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