Engineering Flight Test of the CH-37B

Abstract

Engineering flight tests were conducted on the CH-37B to determine the effects of the changes from the CH-37A configuration on the performance and stability and control characteristics. The program consisted of 29 hours of flight testing. The test aircraft (U.S. Army S/N 54-0998) was modified from a CH-37A to a CH-37B by the incorporation of the following major changes: Installation of Automatic Stabilization Equipment (ASE); Relocation of the horizontal stabilizer to a position opposite the tail rotor; Installation of larger-capacity oil tanks; Replacement of the split cargo door with a sliding cargo door. The performance data obtained during this test were compared with those presented in report 'Limited Evaluation of the H-37A Equipped with Wide Chord Blades' (AFFTC-TR-59-14). A comparison of the level flight performance data revealed that no significant differences existed that would make necessary revisions of the Operator's Handbook (TM-55-1520-203-10).

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1965
Accession Number
AD0884897

Entities

People

  • Joseph C. Watts
  • Robert N. Turk

Organizations

  • Edwards Air Force Base

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Aircrafts
  • Airfoils
  • Altitude
  • Angular Acceleration
  • Army Aviation
  • Automatic
  • Control Systems
  • Engineering
  • Flight
  • Flight Control Systems
  • Horizontal Stabilizers
  • Level Flight
  • Oil Tanks
  • Tail Rotors
  • Test And Evaluation

Readers

  • Aerospace Engineering
  • Facility/Structural Engineering.