AERODYNAMIC CHARACTERISTICS OF BALLUTES AND HEMISFLO PARACHUTES AT MACH NUMBERS OF 2.5, 2.6, AND 2.9

Abstract

A test was conducted in the 16-ft supersonic tunnel to obtain drag, inflation, and stability characteristics of a metal ballute, a cloth ballute, and three hemisflo parachutes (5-, 10-, and 15-percent porosity). The cloth and metal ballutes were investigated at Mach numbers of 2.5 and 2.9, respectively, at a dynamic pressure of 120 psfa. The hemisflo parachutes were investigated at a Mach number of 2.6 at a dynamic pressure of 120 psfa. The drag coefficient of the hemisflo parachutes decreased as canopy porosity increased. There was no discernible effect of canopy porosity on stability of the parachutes.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1965
Accession Number
AD0463362

Entities

People

  • Lawrence L. Galigher

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Aerodynamic Characteristics
  • Air Force
  • Cameras
  • Coefficients
  • Contractors
  • Dynamic Pressure
  • Free Stream
  • Government Procurement
  • Governments
  • Load Cells
  • Mach Number
  • Parachutes
  • Photographs
  • Porosity
  • Test Facilities
  • Wind Tunnels

Readers

  • Aerodynamics/Aeronautics.
  • Fluid Mechanics and Fluid Dynamics.
  • Reinforced Composite Materials

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow