Royal Norwegian Air Force (RNoAF)
MK43B Sea King Operator Trainer Device

  • The System Operator Station (SOS) provides a replica of the Royal Norwegian Air Force's (RNoAF) Radar System Operator Station on the Westland MK43B Sea King helicopter. This includes a Hardware-In-the-Loop (HIL) simulation with the navigation computer.
  • The Radar Simulator and the Radar Data Base Generation System.
  • The Instructor Operation Station (IOS).
  • The Aural Cue/Communication/Intercom/Navigation System.
  • The computer suite uses a real-time computer programmed in Ada ® (Trademark of the US Department of Defense) software.
  • The real time input/output system.


System Operator Station (SOS). The flight hardware devices (controls, instruments, panels, indicators, avionics, and wiring harness) as defined in the aircraft Flight Manual are simulated/mock-up replicas of the actual flight hardware or stimulated actual flight avionics devices. The cockpit flight hardware are either simulations or actual flight hardware. The simulations match the form, fit and function to the air crew.

The Hardware-In-The-Loop (HIL) provides for the stimulation of the actual Racal Area Navigation (RNAV2) avionics. An engineering analysis was performed indicating that it would be more effective for training of the aircrew to use the actual flight hardware. The stimulation of the flight hardware allows full fidelity and agreement with the operational characteristics of the aircraft.

Hardware-In-the-Loop (HIL). The Hardware-In-The-Loop (HIL) System on the trainer uses the actual aircraft hardware to provide high fidelity and total agreement with the look and feel of the cockpit controls and operational characteristics of the actual avionics system. The HIL provides real-time interfaces to the flight hardware, "black boxes" via serial data links (e.g., ARINC-429, etc.), analog voltages input/output (e.g., True Airspeed (TAS)), and discretes input/output (e.g., weight on wheels (WOW)).

Radar Systems. The radar systems simulations provide video of simulated geographical (Norway and coastal waters) and atmospheric environment for the trainer. The simulations simulate all the modes of operation of the Bendix RDR-1300C and RDR-1500B radars. The complete simulation of the aircraft motion and navigation systems provides the necessary data for display on the radar display.

Instructor/Operator Station (IOS). The IOS has dual 21" color monitors that provide many user friendly capabilities to meet the both the system specifications and current Human Computer Interface (HCI) standards and technology.

The layout of the instructor station consists of two color graphic monitors, control panel, a keyboard and a trackball. The monitors are used for flight performance, procedures, and missions. The flight performance window is used for displaying environmental parameters display, repeater instruments display, navigation data display, and Daily Readiness Operational Test (DORT) used during trainer checkout. Ergonomic considerations are derived from MIL-STD-1472D. This provides a design that provides for both ease of operation and within ease reach while providing viewing with minimum glare and reflection.

Aural Cue / Communication / Intercom / Navigation System. The Aural Cue/Communication/Intercom/Navigation System (ACCINS) is a state-of-the-art Digital Audio Communication System. The ACCINS provides:

  1. Aural cues -- Sounds for engines, rotor, and sea/land crash,
  2. Radio and Navigation -- Radio environmental modeling due to range and squelch, Navigation tones and morse code,
  3. Intercom Switching -- Selection of the air crew audio based upon intercom panel select, and
  4. Seat/Floor Vibration -- The floor and seat are vibrated using the same audio signals as the aural cue. This was chosen so that there is 100% correlation between the sound and vibrations.


Host Computer. The host computer is a state-of-the-art computational system programmed in Ada.

Real Time Input/Output System. The Input/Output System is a state of-the-art Intelligent Input/Output Controller (IIOC). The configuration has sufficient capacity for all necessary analog input/output, discrete input/output and synchro input/output.