Terrain display on vintage aircraft
F70 & F100 Professional
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In areas of high terrain, I see the TAWS provides " Look-ahead terrain and display alert" - but am I to understand this is only for excessive terrain closure? Did the aircraft use the ground mapping function of the radar as a sort of terrain feature on the EHSI?
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The way I understand it, the real aircraft uses a mixture of an internal airport/terrain database, as well as flight data based on the ADCs/Radio Altitude, to determine the aircraft's proximity to terrain.
The aircraft doesn't have a 'terrain radar' as such, so it uses the weather radar to detect any terrain surrounding the aircraft.
Mark - Just Flight
