Accession Number:

ADA070532

Title:

Design of a Low L/D Deep Earth Penetrator

Descriptive Note:

Final rept.

Corporate Author:

ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Report Date:

1979-03-01

Pagination or Media Count:

50.0

Abstract:

Steel cylindrical and tapered projectiles weighing 425 grams and having a LD ratio of 5 were fired against concreteclay targets at striking velocities of 305 and 610 ms. It was found that low LD projectiles with tapered bodies appear to be a feasible solution for systems requiring predictable deep earth penetrators. It appears that minimum body taper required for stability probably increases with increasing striking velocity. Path deviation seems to decrease with increasing striking velocity. Results ofthe tests indicate that the delay of onset of rapid yaw ans swerve growth is increased as striking yaw is decreased, which is especially true for projectiles with very small yaws. The tapered projectile concept offers promise as an earth penetrator for both tactical nuclear and conventional weapon systems. Author

Subject Categories:

  • Ammunition and Explosives
  • Ballistics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE