CS 25.203 Stall characteristics

(See AMC 25.203.)

(a)It must be possible to produce and to correct roll and yaw by unreversed use of aileron and rudder controls, up to the time the aeroplane is stalled. No abnormal nose-up pitching may occur. The longitudinal control force must be positive up to and throughout the stall. In addition, it must be possible to promptly prevent stalling and to recover from a stall by normal use of the controls.

(b)For level wing stalls, the roll occurring between the stall and the completion of the recovery may not exceed approximately 20°.

(c)For turning flight stalls, the action of the aeroplane after the stall may not be so violent or extreme as to make it difficult, with normal piloting skill, to effect a prompt recovery and to regain control of the aeroplane. The maximum bank angle that occurs during the recovery may not exceed –

(1)Approximately 60° in the original direction of the turn, or 30° in the opposite direction, for deceleration rates up to 0.5 m/s2 (1 knot per second); and

(2)Approximately 90° in the original direction of the turn, or 60° in the opposite direction, for deceleration rates in excess of 0.5 m/s2 (1 knot per second).