Estimated Power-On Base Drag for a Rocket-Assisted Projectile

Abstract

Power-on base drag values estimated for an existing rocket-assisted projectile (RAP) show that a major portion of the rocket impulse is expended in overcoming drag rather than in extending the range of the projectile. A parametric study of the effects of thrust level, afterbody geometry, and nozzle position on power-on base drag shows that the losses due to drag can be significantly decreased.

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Document Details

Document Type
Technical Report
Publication Date
Jul 31, 1970
Accession Number
AD0874580

Entities

People

  • Charles E. Brazzel

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Afterbodies
  • Base Pressure
  • Bodies
  • Boundary Layer
  • Cylindrical Bodies
  • Diameters
  • Drag
  • Dynamic Pressure
  • Export Controls
  • Free Stream
  • Geometry
  • Mach Number
  • Projectiles
  • Rocket Assisted Projectiles
  • Sea Level
  • Trajectories

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • ballistics.