Accession Number:

ADA135784

Title:

Wind Tunnel Tests on a Nonaxisymmetric Projectile Shape at Mach Numbers 2.5 to 6.0.

Descriptive Note:

Final rept.,

Corporate Author:

ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

1983-09-01

Pagination or Media Count:

46.0

Abstract:

Wing tunnel tests on spinning nonaxisymmetric projectile configurations at Mach numbers of 2.5 to 6.0 are reported. The projectile shapes are ogive- cylinder bodies which have been modified by machining three forward facing surfaces and three rearward facing surfaces on the projectile. The machined surfaces are twisted at a rate corresponding to a typical rifling twist. The forward facing surfaces produce a helical or corkscrew type effect and the rearward surfaces form a nonconical boattail and a triangular base. The objective of the test program was to study shapes which have improved stability characteristics which require less gyroscopic stabilization. A more slender, longer Ld projectile can then be flown which has lower drag and shorter time of flight to a moving target.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Ammunition and Explosives
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE