Word: rotors
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...years inventors have been trying to make the wind generate electricity, but with no commercial success. Three years ago Julius D. Madaras, Detroit Hungarian, persuaded six power concerns that he could succeed by adapting a Magnus rotor such as carried Anton Flettner's sailing vessel Baden-Baden from Hamburg to Manhattan (TIME, May 24, 1926) and lifted Harold Elstner Talbott Jr.'s hydroplane from Long Island waters in 1930. The utilitarians gave Designer Madaras $104,000 to build a demonstration rotor at West Burlington, N. J. Last week he showed them that it works...
...autogiro can climb steeply, land nearly straight down, fly more slowly than a man can run. But it cannot fly fast. The ungainly ''windmill" rotor which accounts for the 'giro's virtues has kept its cruising speed well under 100 m.p.h. Last week New York University announced that its Daniel Guggenheim School of Aeronautics would undertake 'giro speed as a special problem, with funds provided by Harold F. Pitcairn, president of Autogiro Co. of America, U. S. developer of the Cierva invention. Under direction of famed Professor Alexander Klemin, the rotor problem will be tackled...
...annual Originality Contest (sponsored by Professor Akerman) of the Twin City Boys' Air- plane Model Makers Club. There were designs ranging from a maple leaf type offered by Clarence Maihori, a Japanese, to a futuristic conception of 21st Century transport submitted by Robert Hillberg. Harold Hatlestad's rotor ship took first place...
...Hatlestad model has a conventional propeller, but in place of wings there are freely spinning horizontal rotors 14 in. long and 2 in. in diameter. The rotor is composed of two semicircular vanes on an axis-in cross section shaped like the letter S. As the plane moves forward, air pressure causes the rotor to revolve backward. That action, combined with the forward movement, produces low pressure on top of the rotor, increased pressure (lift) on the bottom. If the motor should quit the rotor continues to spin in descent, the lift force stretching the plane's course into...
Until last fortnight, Death had come to no man in an autogyro. Then LePere et Cie., French autogyro manufacturers, began experiments with a new type of autogyro, lacking auxiliary wings, movable tail surfaces, ailerons, supporting itself solely by its rotor which could be tilted from side to side or fore-&-aft, then locked in the new position. Test Pilot Pierre Martin took it up at the Villacoublay airdrome. He forgot to release the lock on the fore-&-aft control before he left the ground. His autogyro dropped from an altitude of only 150 ft., crashed & killed Pilot Pierre Martin. Hastily...