The GENIUS Engineer Who Turned A Grocery Truck Engine Into A Wartime Icon !

He was the engineer who bet General Motors could build a diesel engine lighter, faster, and more powerful than anything coming out of Europe, and he was right. Charles Kettering's Series 71, better known as the Screaming Jimmy, became the beating heart of American industry and warfare, powering Sherman tanks, Higgins boats at Normandy, and eventually one in every three heavy trucks on the American interstate. This video traces the complete history of the Detroit Diesel Series 71, from its two-stroke uniflow scavenging breakthrough in the 1930s, through its dominance of WWII military production, its postwar golden age on America's highways, and the strategic miscalculation during the 1973 oil crisis that nearly destroyed the company that built it. Discover how Roger Penske's 1988 acquisition and the four-stroke Series 60 finally brought Detroit Diesel back from the brink, and why this engine's distinctive scream still echoes in marine and industrial applications today.
This is a story of engineering genius, wartime necessity, corporate hubris, and one of the most remarkable turnarounds in American industrial history.

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