A Parametric Study of a 40-mm Air Defense Gun Using Conventional and Traveling Charge Propellant
Abstract
Work is proceeding on a project which will use the traveling charge effect to enhance the muzzle velocity of guns used in the air defense role. In such guns increasing the muzzle velocity offers two advantages: the time of flight of the projectile is reduced, increasing the likelihood of impacting a highly mobile target; and the terminal velocity is increased, increasing the likelihood of penetration and destruction of the target. A desirable air defense gun would have a 40-mm bore and be 100 calibers long. This gun should be capable of launching a 700 gram HE warhead at 2 km/sec, maximum pressure 544 MPa; and a 160 gram saboted KE penetrator at 3 km/sec, maximum pressure 680 MPa. Using a 1- D traveling charge gun code, parametric studies were conducted with the above two projectile configurations in which the propelling charge configuration was varied from an all granular (7 perforated) booster charge to an all traveling charge. Web and charge weight for the booster charge and ignition delay for the traveling charge were varied to get the highest muzzle velocity for that configuration with the maximum pressure constraint.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1988
- Accession Number
- ADA198032
Entities
People
- Paul G. Baer
Organizations
- Ballistic Research Laboratory