Word: airesearch
(lookup in dictionary)
(lookup stats)
Dates: during 1942-1942
Sort By: most recent first
(reverse)
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...
...well. Air is often so cold that oil closest to the pipe surfaces freezes and insulates the circulating unfrozen oil against the cooling blast. So, to keep the system from breaking down, oil is usually bypassed around the cooler and therefore lubricates at temperatures too high for efficiency. Airesearch has developed a cooler that works in high-altitude cold. It regulates the flow of cooling air through shutters, which are narrowed when the oil becomes too cold, so that the oil remains at an even, efficient temperature...
...must be cooled to between 30° and 100° F. before it is fed to the carburetors. The coolers used are simply air scoops which pour wind around small pipes carrying the hot, supercharged air. Intercoolers on early Flying Fortresses weighed 92 lb. for each of four engines. Airesearch has produced coolers weighing only 32 lb. each-giving each Fortress an extra 240 lb. of useful load...
...Vent. For substratosphere military flying, supercharged cabins are needed in planes, and the compressed air makes the crew feel hot, stuffy and uncomfortable. Airesearch's solution: an automatic outlet vent whose cone-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...