Model HH-53 Helicopter, Durability and Damage Tolerance Assessment Report Submittal

Abstract

Progress continued this month on the NASTRAN model of the forward cabin. Some program slippage was experienced in both the mass distribution and updating cabin stiffness. The transmission and sponson geometry definition was reassigned to the CAD group and new commitments from the weights group were obtained. The program should be back on schedule by April 15. Screening of sensitive dynamic components has also been started. Overall expenditures are about 18% of budget at this point. Although light, the charges are expected to rise as the NASTRAN model of the aft fuselage is generated. This will have to be a complete new model unlike the forward cabin which is a modified CH-53E model.

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Document Details

Document Type
Technical Report
Publication Date
May 13, 1983
Accession Number
ADA129255

Entities

Organizations

  • United Technologies Corporation

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Aircrafts
  • Computer-Aided Design
  • Contracts
  • Damage
  • Damage Tolerance
  • Fracture (Mechanics)
  • Geometry
  • Helicopters
  • Mechanics
  • Sensitivity
  • Simulations
  • Simulators
  • Steady State
  • Steering
  • Structural Integrity

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  • Defense Acquisition Program Management