Aircraft Electrical and Mechanical Systems: Aircraft Electrical Systems Aircraft Pitot-Systems
1. Types of airspeed indications1. Types of airspeed indications. Indicated airspeed (AIS)b. Indicated airspeed (AIS) is the direct reading indicated by an aircraft's airspeed indicator before any corrections on the position, instruments, and other related errors. c. Calibrated airspeed (CAS) refers to the final airspeed shown on the airspeed indicator after major corrections have been made.