Accession Number:

ADA235620

Title:

Aerodynamic Coefficients of the M483A1 Determined from Spark Range Tests

Descriptive Note:

Final rept. Jan 1990-Jan 1991

Corporate Author:

ARROW TECH ASSOCIATES SOUTH BURLINGTON VT

Personal Author(s):

Report Date:

1991-04-01

Pagination or Media Count:

47.0

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.

Subject Categories:

  • Ammunition and Explosives
  • Ballistics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE