Pitot Tube Thrust True Airspeed 
Aerotime
JUNE 23, 2025
The flight crew initially received a cockpit indication that the first officer’s anti-ice system had failed, along with a ‘Pitot Standby’ message. Aircraft are fitted with pitot tubes to assist in providing air speed data to the pilots.
Pilot Institute
JULY 11, 2025
Key Takeaways Mach number is a dimensionless ratio of true airspeed to local speed of sound. Mach number is simply a ratio of your true airspeed to the local speed of sound. That’s the speed your airspeed indicator shows based on ram air pressure in the pitot tube. on dry thrust alone.
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