What is the rule of thumb for TAS?
What is the rule of thumb for TAS? True airspeed (TAS) As a general rule of thumb, the TAS is about 2% higher than IAS for every 1,000 feet (300 m) above sea level. At a typical cruising altitude of 30,000 ft (9,000 m), the TAS is roughly 30% greater than what the cockpit's airspeed indicator displays.
No records found.