Word: flutterings
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Dates: during 1930-1939
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...break up" in the air: wings and tail dropped off. All six occupants were killed (TIME, July 28). Last week the New York Herald Tribune reported from London the Air Ministry's finding, a newly discovered cause of crashes: "buffeting" of the tail unit, as opposed to "flutter...
...Flutter" is the name given to a rapid, rippling vibration which most commonly affects the unsupported wing of a monoplane, sometimes causing it to tear apart, but which at high speeds may affect the tail. Working with a model of the crashed plane, the investigators found it could not have flown fast enough to produce tail-flutter. But at slow speeds, they discovered, the plane's low wing could set up wicked eddying currents which wrenched the tail up and down, destroying all control. This they called "buffeting," and concluded it had sent the Junkers into its fatal dive...
...Shoemaker says: "By raising the bird and dropping it suddenly it Avas made to flutter as it was going down; and the flying birds, seeing it, would begin to circle around, coming nearer and nearer, until they finally lit on the bed around the stool pigeon. Then the net would be sprung. At once there would be a mass of fluttering, struggling pigeons, with heads protruding through the meshes. The fowler and his assistants would rush to the massacre, which was the crushing of the head of each individual bird between the thumb and forefinger...
...pressure area, fitful with Spring, drifted eastward across the land last week, suddenly squatted over northern Indiana. Down to earth raced many winds, flapping from their wings an enormous flutter of feathery snow. Forty-four hours later when the low pressure area was ready to move on again, the Midwest was blanketed beneath one of its worst snowfalls in recorded weather history...
...reluctance of the Air Corps to re-equip with monoplanes has been due to incomplete research into wing construction. At extreme speeds, a monoplane wing is subject to "flutter," or rhythmic oscillation, which leads to rapid destruction of the member involved. The new Boeing model has satisfactorily overcome this difficulty, performs better than its biplane cousin. Equipped with a Pratt & Whitney Wasp motor, supercharged to develop 475 h. p., it cruises at 165 m. p. h., has a high speed well in excess of 200 m. p. h. It carries two machine guns shooting through the propeller, a bomb-rack...