Angle flight mode incorporates GPS, barometric and other sensors to maintain stable position in flight .
Every aircraft that takes off from an airport sets it’s altimeter to the elevation of the airport it’s taking off from , then some fairly complicated math , including barometric pressure ,and tower to tower updates keep the pilot flying true.
Good luck flying without a GPS system in a rapidly changing weather environment . Before GPS satellites, pilots would just fly into the side of a mountain at night during foul weather because of an incorrect altimeter reading . Both GPS and barometer are critical to successful flight (.A squared plus B squared equals C squared ) if you fly in manual mode you are using the barometer.
Every aircraft that takes off from an airport sets it’s altimeter to the elevation of the airport it’s taking off from , then some fairly complicated math , including barometric pressure ,and tower to tower updates keep the pilot flying true.
Good luck flying without a GPS system in a rapidly changing weather environment . Before GPS satellites, pilots would just fly into the side of a mountain at night during foul weather because of an incorrect altimeter reading . Both GPS and barometer are critical to successful flight (.A squared plus B squared equals C squared ) if you fly in manual mode you are using the barometer.
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