Launch Chest Pack Umbilical Cable
The umbilical multi-core cable is 33 ft (10 m) long with a multipin MIL plug on each
end. One end is plugged into the launch chest pack the other into the emergency
stop boxes located on the left and right A-frame stabilizer legs.
The chest pack controls the hydraulic system during launch beam and bridge
deployment and recovery. It is attached to a harness worn by the chest pack operator.
The chest pack is linked to the electrical control cabinet via an umbilical cable.
PUSH TO STOP - TWIST TO RESET
Figure 2. 26 Chest Pack
The chest pack contains a proportional control joystick, a tilt roller/stow articulator
joystick, a lights bright/dim switch, a roller brake switch, a display screen, and an
emergency stop button. The joystick, switch and display screen are protected from
inadvertent operation and damage by a guard.
The display screen shows a series of illuminated captions with text legends to indicate
which function is in operation at the time.