JOTP-011
5 December 2014
APPENDIX A. BACKGROUND/RATIONALE
ANNEX 1. ENVIRONMENTAL TESTS
A.1-3.3 Rough Handling/Loading Drop (Appendix C, Annex 2, Paragraph C.2-7).
Rough Handling Drop tests verify that the munition will be safe to dispose if dropped during
loading onto the Combat Platform. Typical (historical) drop height values have ranged from 2.1
to 3 m. Tailor the drop height according to the LCEP. Due to the severity and accidental nature
of this test environment, it is recommended that only one asset from each temperature condition
be exposed to one drop while in its worst case orientation. If a munition subjected to this test is
damaged to such an extent that it cannot be fired but the damage does not create a hazardous
condition (i.e., safe to transport and disassemble after testing), then the assets may be re-purposed
for additional testing such as BTCA or static fire testing.
A.1-3.4 Low Velocity Parachute Drop (Appendix C, Annex 2, Paragraph C.2-8).
Land based munitions are likely to be re-supplied by parachute delivery and are expected to remain
S3 following such an event. Per MIL-STD-331, Test E5, low velocity parachute delivery typically
result in impact velocities of 8.7 m/s (28.5 ft/sec). Due to variations in parachute delivery systems
throughout NATO service and potential variation of drop conditions (wind speed, angle, etc.), an
elevated velocity of 12.5 m/s (41 ft/sec) should be applied. This environment is commonly
replicated by an 8 m freefall drop unless specific and validated evidence is presented to the
contrary. If it can be demonstrated that the shock loads to the munition in parachute drop are less
severe in terms of velocity and spectral content to the 2.1 m rough handling transit drop, the
parachute drop may be eliminated as a S3 test requirement. This test environment is not applicable
to sea based munitions.
A.1-3.5 12-Meter Logistic Drop (Appendix C, Annex 2, Paragraph C.2-9).
This mandatory logistic drop test, as described in MIL-STD-2105, assesses the safety of the
weapon when exposed to a free-fall drop which may be encountered during ship loading
operations. This test is conducted as a non-sequential test since it is representing an accident
scenario with no expectation for the munition to remain safe for use. The 12-meter logistic safety
drop test is required in the unpackaged configuration for any munition handled out of the shipping
container on a naval vessel. In most cases, the munition will be tested in the packaged
configuration. For either configuration, the drop height of 12-meters should not be tailored.
A.1-3.6 Munition Flight Dynamics (Appendix C, Annex 2, Paragraph C.2-10).
Surface launched missiles and rockets may experience high shock levels during rocket motor
ignition and significant vibration levels during free flight. Appropriate functional tests may be
conducted during these environments to ensure all safety critical components are functional at the
system level. These tests are not required for the Empirical S3 test flow for which these
environments will be evaluated through dynamic firings.
A.1-20
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