Design of a Low L/D Deep Earth Penetrator
Abstract
Steel cylindrical and tapered projectiles weighing 425 grams and having a L/D ratio of 5 were fired against concrete/clay targets at striking velocities of 305 and 610 m/s. It was found that low L/D 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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1979
- Accession Number
- ADA070532
Entities
People
- A. J. Ricchiazzi
- C. J. Brown
- E. T. Roecker
Organizations
- Ballistic Research Laboratory