Originally Posted by STBYRUD
PJ2 is right - one thing doesn't necessarily follow from another, even if you get erratic speed and altitude information that doesn't mean the aircraft will spiral out of control instantly if you are able to fly pitch and power?!
You are correct, but one loss of pitot information, or even worse, one false pitot information, may well lead to a loss of control, especially when the malfunctions are not trained at high altitude in the flight simulators.