UPPER-STAGE HYDRAULIC ELEVATORS.
Upper-stage hydraulic elevators (fig. 11-17) are used to
transport weapons between the second deck and the
main deck only. The major components of each elevator
are an enclosed, watertight, vertical trunk, an elevator
platform assembly, a hydraulic power plant system, and
a semiautomatic elevator control system.
If an excessive elevator downspeed occurs, an
overspeed valve closes and stops the elevator. The
overspeed valve is mounted on the lower end of the
lifting ram hydraulic cylinder assembly.
UPPER-STAGE WIRE-ROPE ELEVATORS.
The upper-stage, wire-rope elevators (fig. 11-18) are the
only weapons elevators in the system that provide
weapons transportation to the flight deck. The 2d deck
is the lowest level served by the upper-stage elevators.
The equipment of upper-stage, wire-rope elevators are
either similar or identical to those of lower-stage,
Figure 11-17.Typical upper-stage, hydraulic, weapons elevator.