MIL-STD-2088-SUP-2 Bomb Rack Unit BRU, Single Store, AircraftThis standard establishes the general guidelines and criteria for the design and development of a single store bomb rack unit BRU for carriage and release of airborne stores excluding air-to-air missiles from fixed wing and rotary wing aircraft using a single suspension point or suspension points spaced at 14 or 30 inches. This standard addresses detailed requirements for gravity non-ejected, pyrotechnic, hydraulic, and pneumatic powered BRUs. Mechanical aircraft armament interoperable interfaces are incorporated to enhance cross utilization and servicing capabilities between military aircraft and aircraft stores see 3.1 of all services of the Department of Defense DoD and North Atlantic Treaty Organization NATO nations.

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MIL-STD-2088B

CONTENTS

PARAGRAPH                                                                                                                        PAGE

5.2.6                Electrical fuzing................................................................................................... 36

5.2.7                Primary release command.................................................................................... 36

5.2.7.1             Impulse cartridge ................................................................................................. 36

5.2.7.2             Solenoid release ................................................................................................... 36

5.2.8                Secondary release command................................................................................ 36

5.2.9                Auxiliary release command ................................................................................. 36

5.2.10              Safety interlock electrical requirements............................................................... 36

5.2.10.1           Safety interlock mechanism status....................................................................... 36

5.2.10.2           Safety interlock drive mechanism electrical power............................................. 36

5.2.10.3           Safety interlock override status............................................................................ 37

5.2.10.4           Cartridge actuated device (CAD) override control.............................................. 37

5.2.11              Vertical support status.......................................................................................... 37

5.2.12              BRU presence status ............................................................................................ 37

5.2.13              Store sensing signal.............................................................................................. 37

5.2.14              BRU power/master arm ....................................................................................... 37

6.         NOTES       ...................................................................................................................... 37

6.1                   Intended use ......................................................................................................... 37

6.2                   Subject term (key word) listing............................................................................ 37

6.3                   International standardization agreement implementation.................................... 38

6.4                   Changes from previous issue ............................................................................... 38

CONCLUDING MATERIAL ..................................................................................................... 39

FIGURE

1.                     14-inch vertical support spacing Type I, two-piston bomb rack unit (BRU)

geometric relationships ............................................................................... 19

2.                     14/30-inch vertical support spacing type II, two-piston bomb rack unit (BRU)

geometric relationships ............................................................................... 20

3.                     14-inch vertical support spacing Type I, single-piston bomb rack unit (BRU)

geometric relationships ...............................................................................21

4.                     Wiring schematic to achieve primary and secondary release .............................. 28

5.                     Initiation circuits to activate redundant energy source control devices............... 31

TABLE

I.                      Carriage characteristics of BRU types................................................................... 8

II.                    Paragraphs containing international standardization agreements........................ 38

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