Telemetry Results with the M456A1E2 Projectile--Series 3
Abstract
Four high-explosive anti-tank projectiles, M456A1E2, were instrumented to measure various a.c. and d.c. voltages in the piezoid/switch/ fuze circuit during flight. Three of the four rounds transmitted. Experimental results show a.c. signals present on the FFAIS (Full Frontal Area Impact Switch) and the detonator. The resistance of the detonator was measured and determined to be 600-900 ohms indicating that the fuze was armed and detonator intact. A d. c. voltage of 650 volts on the FFAIS was measured for one round and 0.0 volts d. c. for the other two rounds. There was no data to indicate why a zero-volt level exists. A survey of previous telemetry results reveals that the zero-volt level at the FFAIS existed on a total of three of six rounds. The absence of a d.c. voltage on the FFAIS could result in a non-functioning of the M456A1E2 projectile on glancing impact.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1981
- Accession Number
- ADA108346
Entities
People
- Wallace H. Clay
- William H. Mermagen
- William Y. Tenly
Organizations
- Ballistic Research Laboratory