Navigate / EASA

CS 22.1323  Air-speed indicating system

ED Decision 2003/13/RM

(a)     The air-speed indicating system must be calibrated to indicate true air-speed at sea-level in standard atmosphere with a maximum pitot-static error not exceeding ± 8 km/h or ± 5% whichever is greater, throughout the following speed range 1.2 VS to VNE, and with wing-flaps neutral and air brakes closed.

(b)     Calibration must be made in flight.

(c)      The air-speed indicating system must be suitable for speeds between VS0 and at least 1.05 times VNE.