PYROLYTIC REFRACTORY MATERIALS FOR SOLID-FUEL ROCKET MOTOR APPLICATIONS

Abstract

The effect of ground proximity on the aerodynamic characteristics of aspect-ratio-1 airfoils was investigated. The investigation was made with the model moving over the water in a towing tank. The results indicated that, as the ground was approached, lift-drag ratio was increased. The profile drag remained essentially constant for each airfoil. Near ground, the addition of end plates to the airfoil resulted in a large increase in lift-drag ratio. Lift characteristics of the airfoils indicated stability of height at positive angles of attack and instability at negative angles; therefore, the operating range of angles of attack would be limited to positive values. At positive angles of attack, static longitudinal stability was increased as height above the ground was reduced.

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Document Details

Document Type
Technical Report
Publication Date
Aug 10, 1961
Accession Number
AD0265189

Entities

People

  • E. P. Flint
  • R. Francei

Organizations

  • Arthur D. Little

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Carbonyl Complexes
  • Ceramic Materials
  • Chemical Synthesis
  • Chemistry
  • Crystal Structure
  • Inorganic Chemistry
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Mechanical Properties
  • Refractory Materials
  • Transition Metals

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Rocket Propulsion.