STUDY OF HELICOPTER TRANSMISSION SYSTEM DEVELOPMENT TESTING

Abstract

This report presents the results of a six month study of test service and overhaul experience on the transmission system components of H-3, H-53, and H-54 helicopters. The study was conducted to determine the relative effectiveness of bench, tie-down and flight testing in revealing transmission system modes of malfunction or failure. Failure data for transmissions of all three aircraft were made to determine failure trends and rates of failure. An analysis of these data, overhaul information and component costs was conducted to determine the effectiveness of current overhaul practices and recommendations for transmission operating intervals are offered. An investigation of the relative costs spent on testing, production and spare transmission overhaul, and modifications (ECP's) has been made for the H-3 and H-53 which underwent full military qualification test programs. A discussion of the goals of transmission development is included along with a suggested transmission test program.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1968
Accession Number
AD0702935

Entities

People

  • Lester R. Burroughs

Organizations

  • United Technologies Corporation

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Aircraft Equipment
  • Aircrafts
  • Airframes
  • Contracts
  • Engineering
  • Failure Mode And Effect Analysis
  • Flight Testing
  • Helicopters
  • Malfunctions
  • Military Aircraft
  • Production
  • Propulsion Systems
  • Ratings
  • Rotary Wing Aircraft
  • Test And Evaluation
  • Test Facilities

Readers

  • Aerospace Engineering
  • Aerospace Test and Evaluation
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).