Why do air craft still rely on archaic pitot tubes?

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Aircraft continue to rely on pitot tubes for primary airspeed measurement because GPS provides ground speed, which can be misleading in certain conditions, such as with a strong tailwind. Indicated airspeed is crucial for understanding stall and flight characteristics, making pitot tubes essential for safety. While GPS is accurate for navigation, it does not replace the need for reliable airspeed data. The discussion raises questions about the integration of Inertial Navigation Systems (INS) and GPS in modern aircraft. Ultimately, pitot tubes remain vital for accurate airspeed readings in aviation.
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If GPS is or can be so accurate why do air craft still rely on archaic pito tubes? sure keep one as a back up, but for your PRIMARY instrument no way.
 
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GPS provides ground speed, not airspeed. If you were in an airliner and had a 100kt tailwind, GPS would think you were going supersonic.
 
Yes for stall and flight characteristics the indicated airspeed is the most important. I don't know if for navigation they use INS (Inertial Navigation System) with laser guided Giro's, or GPS for speed calculation.
 

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