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.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36 - 37 - 38 - 39 - 40 - 41 - 42 - 43 - 44 - 45 - 46

MIL-STD-2088B

h. All services and normal function operations shall be accessible with the BRU latched and store restrained.

i. Criteria shall be applied to the design to: (1) ensure that the equipment can be efficiently, safely, and reliably maintained and operated; (2) ensure that adequate handling provisions have been included; (3) minimize human error-type failures; (4) ensure that design features will not constitute a hazard to personnel.

j. Early design effort shall include identification of human factor variables, which are most likely to require detailed study or research during later design stages, such as human performance requirements which may exceed human capabilities, degrade system objective, reflect possible unsafe practices, or may be prone to human error.

k. Access with sufficient internal space shall be provided for servicing and adjusting.

l. The design of the BRU shall have no protrusions or critically located components that could easily be damaged by normal handling or normal operation of the BRU outside of a shipping container.

4.3.10 Environmental and service conditions. The BRU shall meet the environmental requirements of MIL-STD-810 and MIL-T-7743 (AIR STD 20/18), as applicable, and shall function under any or all combinations of the following general operating conditions:

a. Altitude: From sea level to 70,000 feet.

b. Temperature: From -70 to +200 °F. Transient temperatures are to be determined by the applicable aircraft detail specification.

c. Humidity: Under all conditions of relative humidity at temperatures from -70 to

+200 °F.

d. High-g, vibration, and shock: Under all conditions of high-g, vibration, and shock that are present in the aircraft during service operation.

e. Contaminants: Under all conditions of service or storage.

4.3.11 Maintainability. The only scheduled maintenance the BRU shall require is preflight and post flight checkout and cleaning and the replacement of consumable items and associated services. The BRU shall be designed with sufficient simplicity to permit adjustments, repairs,

and replacement of consumable goods and with component accessibility that requires a minimum of maintenance effort and facilities at all maintenance levels. The design shall provide for ease

of assembly and disassembly with a minimal need for removal of hardware and special tools, test facilities and other support equipment for servicing. Design modularity of components shall be