Product-Improvement Test of the Prototype Universal UH-1( ) Particle Separator (Phase I).
Final rept. 5 Jul-16 Dec 66,
ARMY AVIATION TEST BOARD FORT RUCKER ALA
Pagination or Media Count:
The US Army Aviation Test Board tested the Prototype Universal UH-1 Particle Separator installed in UH-1B and UH-1D Helicopters at Fort Rucker, Alabama, from 5 July 1966 to 16 December 1966. The particle separator installed in the UH-1C Helicopter was tested at Yuma, Arizona, from 18 to 27 July 1966. Testing was conducted to obtain operational experience relative to the suitability of the separator. The flight program for the UH-1B and UH-1D included hovering the helicopters in the same sandy area used in previous tests and operating the separator under field conditions such as those encountered in the Republic of Vietnam whereas, the separator installed in the UH-1C was operated only in a sandy environment. Four deficiencies and two shortcomings were found during the test. The deficiencies were the lack of a Modification Work Order, deicing or anti-icing provisions, ice formation warning provision, and unsatisfactory adhesives for securing the rubber gaskets to metal surfaces. It was concluded that correction of the shortcomings would enhance the suitability of the particle separator and that after correction of the deficiencies, the particle separator should be suitable for Army use. It was recommended that the shortcomings be corrected as technically and economically feasible, that the separator be adopted for use on all UH-1 helicopters after correction of the deficiencies, and that further testing, using quantitative methods, be conducted to determine the effects of the particle separator installed in the UH-1D on short-shaft operating temperatures. Author
- Jet and Gas Turbine Engines