Section II. SAFETY
8-4. OPERATIONAL SAFETY. The CMS is designed for safe operation during all phases
Prior to the activation of motion, all occupants of the simulated
cockpit and IOS (limited to three persons per flight compartment)
are required to fasten seat belts.
a. Each motion system employs numerous devices to ensure safe operation for per-
sonnel. Among these are controlled deceleration devices, cushion stops, limit-
sensing, leveling and locking devices, thermal cutout for hydraulic fluid, emergency
stop switches, and red warning lights in personnel areas.
b. The entrance/emergency exit doors are equipped with safety interlocks that
prevent motion activation until the door is secure.
c. The motion equipment is located within a gated area with gate interlocks that
prevent motion activation unless the gates are closed.
d. The boarding ramps are equipped with sensing switches to prevent boarding
ramp motion with additional weight (person) on the ramp. The motion system is not
activated until the boarding ramp is completely raised.
e. Normal activation and deactivation of each motion system is accomplished at
the respective IOS. Motion for each flight compartment is controlled separately
and is not mode-dependent.
f . Fail-safe circuitry prevents erratic movement of the motion system when
g. Temperature sensors are located in each equipment cabinet. If the temperature
reaches 100F or if adequate airflow is not maintained, visual and aural warnings
activate in the computer room. At 110F, the entire complex automatically shuts
h. Actuation of any emergency STOP switch results in the immediate shutdown of
the entire complex, motion system. and/or visual system. Once an EMERGENCY STOP
switch has been actuated and the power shuts down. the main and linkage circuit
breakers must be manually reset before power can be reapplied.
i . In the emergency stop condition, a quick-settle control valve returns the
motion platform to the settled position at the highest practicable speed. The
boarding ramp lowers under power of a reserve stored energy source. Personnel can
safely egress to the access balcony in approximately 24 to 31 seconds, depending on
the position of the motion platform at the time electrical power was cut off.
j . Emergency escape ropes are provided in case power failure or hydraulic
failure prevent a boarding ramp from deployment.