JOTP-011
5 December 2014
APPENDIX D. OPERATING TEST DESCRIPTIONS
ANNEX 1. FIRING SAFETY TESTS
Fuze arming distance firings are used in combination with warhead arena trials to verify that the
no-arm or "minimum arm distance" exceeds the safe separation distance for the item. Detailed
guidance may be found in MIL-STD-331. Consider anticipated launch scenarios (e.g., platform
velocity, launch attitude, maneuvers) in planning fuze arming tests and analysis.
a. Fuzes function in two primary modes: point detonating and air burst, others may include
a delay feature. The Projectile Fuze Arming Distance procedure of MIL-STD-331 Test D2 is
used to determine the minimum arm distance for point detonating and delay type fuzing
systems. For an air burst type fuzing system, the minimum arm distance is determined using
the Time to Air Burst test approach in MIL-STD-331 Test D3.
b. Fire items at an instrumented range and record launch, early flight, and air burst or
target impact portions of the flight with high-speed cameras, radars, or infrared sensors. Record
fire control and ground signals, as well as target configuration and distance from launch point.
Obtain time to burst data, munition position, and velocity data and as applicable, miss distance
data for these firings.
D.1-3 WARHEAD FUZE SENSITIVITY.
Fuze sensitivity tests determine whether or not the fuze functions on impact with light brush or
other obstruction in close proximity to the firing crew. A fly-through panel is placed at
predetermined distances to simulate obstructions. MIL-STD-331 provides details on this and other
fuze sensitivity tests. Some of the munitions may be fired at extreme temperatures.
D.1-2
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