Word: delta
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Dates: during 1950-1959
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Lumberman Livermore unwinds on ski and pack trips in the Sierras each year, and, like him, the best-relaxed men turn to noncompetitive activities -fishing, swimming, horseback riding, birdwatching. Atlanta's Mayor William B. Hartsfield is a spare-time rockhound (amateur geologist). Delta Air Lines President C. E. Woolman raises $100-a-plant pedigreed orchids. World Publishing Co. President Benjamin D. Zevin finds lawn-mowing relaxing because "I know there's a hired man to do it if I don't want...
...enormous thrust. Most of them are freaks that will never fly. Last week designers were studying a novel wingless aircraft that is not in the same class. Its originator, Dr. Alexander Martin Lippisch, 61, a top German airplane designer in World War II, was largely responsible for the delta wing and Nazi Germany's ME-163 rocket plane. His new "aerodyne," however odd-looking, cannot be laughed off as a crazy inventor's dream...
...Wrights' pioneer airplane," says Dr. Lippisch, "was a glider and an auto engine and a windmill. Airplanes are still powered gliders." Working with gliders, delta wings and rocket planes, he has long dreamed of an aircraft that would fly without supporting wings. "Wings are for the birds," he says. "They heat up, and they increase drag. In supersonic flight they create sound and shock waves. Energy is lost. For economy, you have to have an internal flow process. You can reflect and extinguish these shock waves on the opposite walls of the channel that you put them through...
Slow Marvels. This is what the aerodyne does, says Dr. Lippisch. He thinks that the design will be more suited to large aircraft than small. So far, his aerodyne is strictly experimental, and he does not want to predict when it will come into flying use. "I developed the delta-wing aircraft back in the '30s," he says, "and look at the time it took to develop them. I ran into the same trouble that I am running into now. Everyone marvels, but the development away from conventional, conservative systems is hard to get started...
...Gloster Javelin, first projected in the late 19405 as a delta-wing, all-weather fighter, was so full of troubles that it will only come into general service next spring...