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PGC-A Functionality
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The PGC-S affordably brings to the cockpit of merely every airplane or helicopter the functionality of several modern avionics systems, thus providing the increased level of safety and
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In PFD mode the system generates indication of flight data generated by inertial system in the same format and can be used in the same manner as a conventional instrument panel:
- Attitude indicator
- Airspeed and ground speed
- Altitude
- Vertical speed
- True heading, magnetic heading
- HSI
- G-meter
- Turn rate
- Slip ball
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A FD system combines many of the avionics instruments to provide an easy-to-interpret display of the aircraft's flight path. A pre-programmed path, automatically computed, will furnish the steering commands necessary to obtain and hold the desired path.
The desired path is indicated as a blue 3D polygonal line. The target of control is a red cross, sliding this line ahead the aircraft. To follow the prescribed path, the aircraft has to change the velocity vector, both direction and magnitude. Matching the current vector of force with the indication of desired force allows the pilot to directly affect the aircraft, achieving the desired spatial state. In another words, the pilot has to simply control the way the yellow circle matches the red cross, assuring the precise following of the flight path. Throughout this process the pilot also enjoys the complete graphically depicted flight limitations and attitude indications.
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A Terrain Awareness and Warning System (TAWS) uses terrain databases and the aircraft's position, track, groundspeed, pitch and roll angles, altitude and vertical speed information, all provided by CompaNav-2 INS/GPS system to alert the pilot to the presence of hazardous terrain in front of the aircraft.
The PGC-A application creates a 3D image of the terrain ahead the aircraft, matches this image with primary flight display, thus providing the true synthetic vision — the top achievement of modern flight data visualization.
The Terrain Awareness Line will slide ahead the aircraft following the terrain. The desired forecasting is therefore set ahead of the flight as well as the elevation over terrain, providing guidance for contour or drape flying — one of the most sophisticated piloting jobs.
The color coding of terrain is provided to simplify the pilot’s situational awareness: The green area is safe. The red area is dangerous. As soon as the predicted flight path curve (trend vector) touches the red zone, the pilot is warned to climb up or change the course.
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