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|  MIL-S-1399E(A)
3.4 Transportation vibration.
The signal assembly shall comply
with the following requirements:
3.4.1 The signal assembly shall not function during the test,
3.4.2 The signal assembly shall be safe to transport following
the test (see 6.7).
3.4.3 There shall be no evidence of external damage to the
signal assembly that will affect the intended function (see 6.8).
3.4.4 There shall be no evidence of damage in the packing or
packaging that would affect the storage life of the signal
assemblies.
3.4.5 The signal assembly shall comply with the requirements of
3.5 following this test.
3.5 Functioning. The signals shall function in accordance with
the following requirements:
3.5.1 No tracer or star shall burst in the pistol.
3.5.2 The signal case shall not split, rupture, or bulge to the
extent that it sticks or "freezes" in the pistol barrel.
3.5.3 The primer shall not fail to function.
3.5.4 The tracer shall ignite within 1 second after firing
pistol.
3.5.5 The stars shall not ignite within 1 1/2 seconds after
firing.
3.5.6 The burning stars shall not fail to attain a minimum
(min.) altitude of 150 feet above the firing point.
3.5.7 The tracer and both stars shall not fail to function and
shall not burn longer than 1 1/2 seconds simultaneously.
3.5.8 The interval between extinction of the tracer and
initiation of both stars shall not exceed 1 second.
3.5.9 Portions of composition that become detached during star
burning shall not burn for more than 2 seconds.
3.6 Air leakage test. The signal shall show no evidence of
leakage when tested as specified in 4.5.4.
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