cartridges to eject the weapon/store free of the bomb
racks. Bomb ejector racks eject the weapon/store from
the bomb rack with sufficient force to overcome
vacuum buildup and ensure a safe weapon/store-
launching environment.
BRU-11A/A Bomb Ejector Rack
The BRU-11A/A bomb rack (fig. 10-5) is used on
the wing stations of the S-3 aircraft. The rack provides
mounting and bracing for single weapons/stores or a
triple
ejector
rack.
Electrical
connection
and
mechanisms for release and mechanical arming of
stores are an integral part of the bomb rack.
Four
suspension
hooks,
asymmetrically
positioned, provide for attachment of weapons/stores
having either 14-inch or 30-inch suspension and
weighing up to 4,000 pounds (because of aircraft
structural limitations only weapons/stores weighing up
to 2850 pounds are authorized).
Major components consist of a rack assembly,
ejector unit, auxiliary release unit, and an in-flight
operable bomb rack lock (IFOBRL) mechanism.
The ejector unit is equipped to accept two bomb
ejector cartridges. When the cartridges are fired, the
suspension hooks open and the ejector foot forcibly
ejects the weapon/store from the rack assembly. The
auxiliary release unit provides an emergency method of
release should the ejector assembly or its electrical
system fail. The IFOBRL mechanism consists of a
remotely controlled bomb rock lock and an emergency
release (auxiliary unlock) for the bomb rack lock. The
lock/unlock actuator is controlled electrically or
manually during loading/unloading or ground checks.
The locking feature replaces the use of the mechanical
safety pin. Daily and preflight inspections ensure that
the bomb rack is in a safe operating condition.
If
you
need
more
information
about
the
BRU-11A/A bomb ejector racks, refer to Bomb Ejector
Rack BRU-11A/A, NAVAIR 11-10C-24.
REVIEW NUMBER 1 ANSWERS
A1.
The BRU-14/A bomb rack is installed in the
P-3C aircraft.
A2.
The BRU-15/A bomb rack is used on the wing
stations of the P-3C aircraft.
10-4
FWD
FWD
AOf1005
Figure 10-5.—BRU-11A/A bomb rack.
