Correlation and Evaluation of CH-47A Flight Spectra Data from Combat Operations in Vietnam

Abstract

The report evaluates flight spectra data for three different mission assignments flown by CH-47A helicopters. Two of these missions were flown in Southeast Asia under actual combat conditions: one as an armed/armored helicopter and one as a cargo/transport helicopter. The third mission was flown as a cargo/transport helicopter during simulated maneuvers in the United States. The CH-47A flight spectra data for these missions were compared to each other; to flight spectra data obtained from other helicopters; to the CAM-6 spectrum; and to a fatigue substantiation spectrum used initially to establish component fatigue lives for the CH-47A. Evaluations and correlations of these spectra are presented; and where variations occur, their probable cause and possible effects on fatigue life are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1969
Accession Number
AD0866614

Entities

People

  • John D. Porterfield
  • Paul F. Maloney

Organizations

  • Kaman Corporation

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Aircraft Equipment
  • Aircrafts
  • Altitude
  • Army Aviation
  • Cargo Ships
  • Combat Operations
  • Cyclic Loads
  • Fatigue Life
  • Fire Support
  • Flight Loads
  • Helicopters
  • Southeast Asia
  • Statistical Analysis
  • Steady State
  • Transport Aircraft
  • Transport Ships
  • United States

Fields of Study

  • Physics

Readers

  • Joint Military Operations and Doctrine.
  • Space Exploration and Orbital Mechanics.
  • Structural Health Monitoring of Composite Structures.