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For 1926, Bethlehem diesels were available in ten sizes ranging from 60 to 570 horsepower. Operating on the two-stroke cycle, the Bethlehem engines used the Leissner fuel injection system. Cylinder air was compressed to 450 PSI. The 60, 90, 120, and 180 horsepower models all used an 8 1/2 x 12-inch bore and stroke with 2, 3, 4, and 6 cylinders respectively. An 11 1/2 x 8-inch bore and stroke were specified on the 180, 240, and 360 horsepower models, using 3, 4, or 6 cylinders. Likewise, 3, 4, or 6 cylinders were used in the 285, 380, and 570 horsepower engines – all with a 14 1/4 x 21-inch bore and stroke.
Bethlehem Steel Corporation acquired the San Francisco shipyard Union Iron Works in 1905 and Bethlehem Steel Corporation Shipbuilding Division was created. It was incorporated as Bethlehem Shipbuilding Corporation, Limited in 1917. By 1940, it was the largest the the “Big Three” U. S. shipbuilders that could build any ship. They expanded shortly before and during World War II. They ceased shipbuilding activities in 1997 in an attempt to preserve their core steelmaking operations.
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