MIL-STD-2088 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

w/CHANGE 1

3.15 Single point safetying. Changing from a state of readiness for initiation to a safe condition from one location.

3.16 Swaybracing. That mechanism within the physical tri-axial restraint system which partially or totally reacts to store yaw and pitching moment in addition to vertical and lateral store loads.

3.17 UAV. Unmanned aerial vehicle.

3.18 Vertical supports. The structural mating members of the BRU to the store. Typically hooks have been used to accomplish this function.

4. GENERAL REQUIREMENTS

4.1 BRU types. Carriage characteristics of BRU types are shown in table I.

TABLE I. Carriage characteristics of BRU types.

Type	Vertical support spacing	Maximum Carriage Mass
I	14-inch	1450 lbs.
II	14/30-inch	1450 lbs. for 14-inch 5000 lbs. for 30-inch
III	Single Suspension Point	100 lbs.

4.2 Selection of materials, specifications, standards and drawings. The selection of materials, standard parts, processes, corrosion protection, and design features significant in corrosion behavior shall be in accordance with the guidelines of SD-24.

4.2.1 Materials. Materials shall conform to applicable specifications, be compatible with conditions of 4.3.10, and shall be as specified herein and on applicable drawings. Design shall make maximum use of standard (such as MS, AN, SAE, and MIL-DTL/PRF) parts, materials and processes, rather than special or peculiar items. Materials that are not covered by government specifications or that are not specifically described herein shall be of the best quality, suitable for the purpose intended. Particular care shall be given to close-fitting parts in the choice of both materials and corrosion prevention methods. Materials should be selected so that wet lubricants or preservatives are not required. Particular care shall be taken to minimize

the use of ozone depleting materials or coatings, and toxic materials such as cadmium or chrome plating.