Word: speeding
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Dates: during 1930-1939
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...superfortress (150 ft. wingspread) is equipped with bigger engines. Two days prior, the same ship climbed to 8,200 feet with a 15½-ton payload (world's record). Smaller Boeing "fortresses" (YB-17s, 105 ft. wingspread), carrying five-ton loads, established new altitude (23,800 feet) and speed (205 m.p.h.) records for a 621-mile course. Another "fortress" climbed to 33,400 feet carrying five tons (world's record). In time for the party at Wright Field, a brand new Boeing B-17B, first of 26 supercharged versions of the present "fortress" about to be delivered, hurtled...
...Mussolini has given this task to the "Army of the Po" under General Ettore Bastico. Its 50,000 men are divided into three corps; "armored" divisions equipped with heavy tanks and mobile artillery; four "swift" divisions of fast tanks and light guns; "motorized" troops which can travel at high speed over open roads. Theoretically, after the armored corps has made a breakthrough, the other divisions will keep the enemy rolling back without an opportunity of reforming its lines...
Thirty-six hours from starting point (twelve hours slower than the Clippers) the Caribou, after lighting to deliver part of her 1,000-lb. mail load in Botwood, Newfoundland and Montreal, glided into Port Washington, L. I. If her speed and payload had lagged behind the Clippers', Britain could console herself that no nation could dispute her No. 2 rank in the North Atlantic. Air France, which also has a treaty right to land transatlantic mail and passengers in the U. S., is still in the survey stage. When Imperial shakes down, the Caribou and her sistership Cabot will...
...some 50% more horsepower, about the same dimensions. Secret-of-success: through trial & error engineers had learned to cool high-powered air-cooled engines more efficiently, thus were able to clump more cylinders around a single crankshaft. Better cooling also made it possible to increase cylinder pressures, step up speed of piston strokes...
...Four speeds forward give it a top speed of 10 m.p.h., make it useful for road building...