TESTS OF OERLIKON BZ AND KZ FUZES FOR 20MM AMMUNITION
Abstract
Tests were conducted to determine the performace and sensitivity of the fuzes against various targets at various obliquities, the approximate delay of fuze action, the distance from the muzzle where the fuzes armed, and the time and range of self-destruction. The KZ nose fuze and the BZ base fuze have direct action firing pins restrained by safety bolts and are armed by set back and spin. The self-destruction feature of both types depends upon decreased spin with range. The KZ and BZ fuzes gave no bore or flight premature detonations when fired as single rounds from the Oerlikon 5TG gun. The BZ base fuze assembled in the PS/B armor-piercing explosive projectile when fired with mean velocities of 3254 to 3315 fps exhibited a 92% self-destruction performance at an average range of 2287.4 yd from the muzzle with an average flight time of 4. 60 sec. It detonated with a delayed fuze action of approximately 0.001 sec when fired against a 0.125-in. mild steel target. The KZ nose fuze assembled in the SS/K explosive projectile when fired with mean velocities of 3619 to 3771 fps exhibited an 88% self-destruction performance at an average range of 2842.3 yd with an average flight time of 5.47 sec. It detonated with a delayed fuze action of approximately 0.00015 sec when fired against thin targets of 0.016- to 0.040- in. 24S-T3 Al alloy at 0 deg obliquity.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1953
- Accession Number
- AD0013848
Entities
People
- T. W. Truslow
Organizations
- Naval Surface Warfare Center Dahlgren Division