2-83. VIBRATION SIMULATION.
2-84. An electrohydraulic seat shaker transmits vibrational effects to the trainees, but its effects are isolated from other
compartment-mounted hardware and other simulator occupants.
2-85. COCKPIT INSTRUMENTATION SIMULATION .
2-86. All cockpit instruments and controls are modified actual aircraft instruments that accept outputs from dc analog
circuitry under computer control and respond with the desired deflections or rotations. Three basic types of circuitry are
used to drive the following classes of instruments:
Meter movement instruments
2-87. RADIO COMMUNICATION AND INTERCOMMUNICATION SYSTEM SIMULATION.
2-88. An internal communication system (ICS) under computer control directs audio signals by means of C-6533/ARC
control panels for:
Trainee to trainee
IOS to observer
Trainee to IOS
Trainee to observer
IOS to trainee
IOS to computer room
Observer to IOS
Computer room to IOS
The simulator C-6533 ICS operates identically to that in the helicopter. The observer station
ICS control box switches must be in the following positions for the instructor to observe
communication: (1) all toggle switches down/OFF; and (2) selector switch on position 5.
The IOS C-6533 ICS control box switches must be in the following positions for total IOS
communication functions: (1) toggle switches 1 through 5 up/ON; (2) AUX and NAV switches
down/OFF; and (3) selector switch on position 5.
2-89. MALFUNCTION SIMULATION.
2-90. Approximately 220 malfunctions can be inserted by the instructor. Malfunctions are realistic, and they provide the
pilot and copilot with meaningful training in emergency responses.
2-91. CONTROL LOADING.
2-92. The control loading system provides a realistic and responsive feel to the simulated helicopter flight controls.
Electrohydraulic units, combined with a mechanical linkage system, produce initiating and reactive forces for the
controls. Simulation computer feedback causes the appropriate motions of the aircraft in flight. During a demonstration
playback, the cockpit flight controls are driven by the computer and appropriately positioned in response to aircraft