Publication Date:
2019-07-13
Description:
A 500-hp Advanced Technology Demonstrator helicopter transmission was designed by an American aerospace company under a NASA contract. The project was mainly concerned with designing a 500-hp version of the OH-58C 317-hp transmission which would have the capabilities for a long, quiet life at a minimum increase in cost, weight, and space, which usually increase along with power increases. This objective was accomplished by implementing advanced technology which has been developed during the last decade and by making improvements dictated by field experience. The improvements are related to bearings made of cleaner gear steels, spiral bevel gears made of cleaner gear steels, high contact ratio spur gear teeth in the planetary which will reduce noise level and increase gear life, and modifications concerning the sun gear.
Keywords:
AIRCRAFT PROPULSION AND POWER
Type:
American Helicopter Society, Specialists Meeting on Rotary Wing Propulsion Systems; Nov 16, 1982 - Nov 18, 1982; Williamsburg, VA
Format:
text
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