Aerodynamic Coefficients of the M483A1 Determined from Spark Range Tests

Abstract

The aerodynamic coefficients of the M483A1 have been refined based on analysis of 65 BRL Transonic Range tests. Both the original M483A1 tests (1975) and the latest tests from 1987-1989 were analyzed utilizing a six degree-of- freedom technique during September-October 1990. The Magnus moment was found to be extremely nonlinear with angle of attack and Mach number. The size of the slow arm limit cycle was computed along the region of dynamic instability due to a large positive Magnus moment at moderate yaw levels. The values of the axial force, normal force, pitching moment, damping moment, and Magnus moment are presented.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1991
Accession Number
ADA235620

Entities

People

  • Robert H. Whyte

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Boundaries
  • Computer Programs
  • Data Analysis
  • Data Reduction
  • Data Sets
  • Equations
  • Experimental Data
  • Mach Number
  • Muzzle Velocity
  • Physical Properties
  • Research Facilities
  • Speed
  • Test Facilities
  • Wind Tunnels
  • Yaw

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.