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|  MIL-R-81965A(AS)
b.
Store releases shall be accomplished through use of the LEMA.
c.
The following shall apply for Type I bomb racks only. For all unloaded tests the IFOBRL
shall be unlocked prior to vibration. For all loaded tests the IFOBRL shall be locked prior to
vibration. For releases performed while vibrating at resonance, the IFOBRL shall be
electrically unlocked at rated voltage while vibrating, just prior to release, For all releases
after vibration, the IFOBRL shall be unlocked at rated voltage after vibration has been
stopped, just prior to release.
TABLE IV
APPLIED SHOCK LOADS
APPLIED SHOCK LIGHT
APPLIED SHOCK LIMIT
LOAD g's) FOR 101 LB,
LOAD (g's) FOR 1,000 LB.
DIRECTION
(45.81 KG.) STORE
(453.6 KG.) STORE
Vertical Down
25
7.33
-
Vertical Up
25
3.67
Longitudinal Forward
25
6.60
Longitudinal Aft
25
6.60
Transverse Port
25
4.80
Transverse Starboard
25
4.80
4.6.7.9
Lfe test. This test shall be conducted in accordance with the life test for nonexplosive
items, except that the mean deviation requirement shall not apply. For Type I bomb racks the IFOBRL
shall be cycled (lock-to-unlock) at rated voltage prior to each release of the bomb rack.
4.6.7.10
Static load tests. This test shall be conducted in accordance with the static tests except
that the bomb rack shall be loaded to limit, yield and ultimate loads. The failure load test shall not be
conducted. Yield loads shall be 1.15 times and ultimate loads 1.5 times the limit loads given in Table V.
The loads shall be applied to a rigid simulated store of negligible weight (200 pounds, 90.72 kilograms
maximum). All loads and moments shall act at a point midway between the hooks and 8 inches (20.32
centimeters) below the lug bearing surfaces. When testing a Type I bomb rack, the IFOBRL shall be
locked prior to application of loads, After reaching the specified limit, yield and ultimate loads. the loads
applied to the simulated store shall be reduced to zero and the simulated store released utilizing the LEMA
and 28 VDC. Bomb rack function shall not be degraded nor shall there be any permanent deformation or
damage noticeable by visual examination after return to zero load from limit and yield loads. A modified
functional test as outlined in 4.6.3.1a. through j. for Type I bomb racks and 4.6.3.2a. through i. for Type II
bomb racks, as applicable, shall be performed after application of limit and yield loads. The bomb rack
shall not release the store below or at ultimate load. However, permanent deformation, damage and
functional degradation, including failure to release the store, is acceptable after return to zero load from
ultimate load.
19
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