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Rocket motors and rocket catapults |
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|  MIL-S-18471G(AS)
4.5.1.4 Rocket motors and rocket catapults. Rocket motors and rocket
catapults shall complete all tests required by MIL-A-85041 in accordance with
3.2.2.4.
4.5.1.5 Recovery subsystem. The recovery subsystem shall be tested to
demonstrate compliance with 3.2.2.6.
4.5.1 .5.1 Parachute assembly. The parachute assembly shall be tested to
demonstrate compliance with 3.2.2.6.1, as part of the tests specified in
4.4.3 and 4.5.1.5, where parachute canopy opening occurs a minimum of 1,000
feet above ground level. Total velocity (VT) and vertictal descent velocity (VV)
shall be determined by averaging a minimum descent of 200 feet, excluding the
final 40 feet above the local terrain of the lowest extremity of the aircrew-
member. Prior to averaging, all data shall be corrected to ICAO standard
sea level, no wind conditions. Data from track tests shall not be used to
establish VT or VV.
4.5.1.6 Survival container. Rigid seat survival kits shall complete all
tests required by MIL-S-81018 or MIL-S-81040, as applicable, to demonstrate
compliance in accordance with 3.2.2.7. For survival containers not conforming
to the requirements of MIL-S-81018 or MIL-S-81040, the contractor shall prepare
a test plan in accordance with 4.7.2 and demonstrate the acceptability of the
proposed configuration for use in aircrew escape systems.
4.5.2 System design compliance tests. The escape system test articles
shall be in accordance with the testing baseline (see 4.3.2.4). Modifications
necessitated by test conditions shall be approved in writing by the procuring
activity and incorporated into the applicable test plan prior to the start of
the test.
4.5.2.1 Environmental conditioning. Compliance with the requirements of
3.1.9 shall consist of environmental conditioning followed by an ejection seat
performance test as defined below.
4.5.2.1.1 Test articles and procedures. Two test articles shall be
subjected to MIL-STD-810 environmental tests as defined in table III. Test
article A shall consist of an inert ejection seat assembly with ballasting
used to replace pyrotechnic devices. Test article B shall include one lot
of active pyrotechnic devices as defined by the escape system configuration.
Performance testing of test article A shall consist of demonstrating proper
operation of all manually controlled devices. Test article B devices shall
not be performance tested before, during, or after environmental conditioning
except as specified in 4.5.2.1.2. Environmental conditions shall be imposed
on both test articles in compliance with table III, in the order listed.
4.5.2.1.2 Performance test. Upon completion of environmental conditioning
test articles A and B shall be combined into an ejection seat assembly and
test fired at ground level, zero airspeed, occupied ejection seat conditions
Results shall demonstrate performance as required of all escape events and
functions. Instrumentation and camera coverage shall be defined in the test plain
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