Word: lowe
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Dates: during 1940-1949
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With the only refrigerated wind tunnel and the biggest low-pressure chamber in the U.S. aviation industry, Airesearch Co. of Inglewood, Calif. is developing equipment to send planes toward the stratosphere, whither the air battles of World War II are rapidly climbing. The refrigerated wind tunnel, an enormous doughnut 25 feet across, made of tubing three feet in diameter, contains a 300-m.p.h. wind that blows at temperatures down to -90° Fahrenheit...
...low-pressure chamber, 11 ft. in diameter and 45 ft. long (it will hold the fuselage of any pursuit ship or test segments of bombers), can simulate air conditions from sea level to 65,000 ft. Much that comes from these two laboratories is secret, but last week three of their products were announced...
...shaped plug, controlled by an altitude-sensitive device and powered by the energy arising from differences between inside and outside pressures, varies the opening's size. With it is combined a safety valve ("overriding control") which lowers the pressure inside the cabin if the plane ventures into extreme low-pressure altitudes (above 40,000 ft.), where a supercharged cabin with its 8,000-ft. interior pressure might otherwise burst...
...march of naval progress, was a Mississippi scow compared with the U.S.S. Washington, one of the newest battlewagons, with her heavy armor protection for crews above decks (against shell and bomb splinters), her massive armament (topped by nine 16-inchers), her imposing hull and turret armor, her sleek, low-lying speed lines...
...greater maneuverability, especially on quickly built temporary landing fields. The Army explains that it is not yet ready for wooden combat planes, is meanwhile ordering more & more wooden primary trainers, has available a design for an advanced trainer in which priority precious metals may be replaced by wood and low-alloy steel...