Heavy Lift Helicopter - Advanced Technology Component Program - Hub and Upper Controls
Final rept. Jul 1971-Jul 1975
BOEING VERTOL CO PHILADELPHIA PA
Pagination or Media Count:
The Heavy Lift Helicopter Advanced Technology Component ATC development program was conducted by the Boeing Vertol Company for the U.S. Army from July 1971 through July 1975. As a part of this program, an advanced rotor hub and upper controls system design was developed and demonstrated to be satisfactory for application to the XCH-62 Prototype HLH. The ATC hub and upper control component developmentdemonstration activities included the flaplag pitch elastomeric bearing, frequency selective lag damper, and shear bearing development efforts manufacturing techniques development fretting inhibitor evaluation safe-life, fail-safe, and endurance testing of major hub and upper control components whirl tower tests and integrated rotor-drive system tests.