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|  MIL-F-63281A (AR)
4.5.35 Ballistic firing test. The loaded M433 fuze shall be
conditioned in accordance with Table VI or Table VII, whichever is
applicable. This test shall be performed at a Government facility
using M230 warheads with photoflash cartridges for the bunker and
canopy tests and M151 warheads for the superquick tests. MK40, Mod
3 rocket motors shall be used for all tests and they shall be
temperature preconditioned to +155F 4F prior to assembling
to warhead/fuze. The fuze shall be set with a setter that
represents the helicopter setting system. A hard copy of the fuze
charge signature shall be made at this time. Prior to setting and
firing, the fuzes shall be checked for charge circuit continuity.
Fuzes that fail the continuity tests shall not be subjected to the
ballistic test. Range markers shall be situated along the flight
path. Airburst range behind the target shall be detected and
recorded.
4.5.35.1 Superquick test. The SQ setting shall be used for
this test. The launcher shall be so located that rockets will
impact at a slant range of approximately 3000 feet when launched at
a QE of 0 to -20. A QE of -70 will be used unless otherwise
specified by the procuring agency. The impact area shall be such
that a rocket launched from this altitude shall not have a
trajectory resulting in a slant range in excess of 4000 feet.
Impact shall cause the warhead to detonate high order.
4. 5.35.2 Simulated bunker test.
A 20 msec setting shall be
used for this test. The rounds shall
be tested against a 30-to
40-inch thick bunker made of nominal
1-foot square logs or
equivalent and located at a distance
of 1100 feet from the
launcher. Velocity at target impact
will be about 1700 feet per
second.
4. 5.35.3 Simulated forest penetration (canopy) test. The 200
and 460 msec settings shall be used for this test. The rounds shall
be tested against a 20-foot high by 40-foot wide wall of 3/4 inch
thick plywood located at a distance of 1100 feet from the launcher.
Velocity at target impact will be about 1700 feet per second.
4. 5.35.4 No-test criteria. Some ballistic firings may result
in conditions that do not properly test fuze function in the bunker
and canopy operating modes. If the following conditions occur
during a test firing, that launch will be scored as a "no test":
The rocket misses the target.
a.
The rocket hit the ground before reaching the target.
b.
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