§23.2115 Take-off performance

(a) The applicant must determine aeroplane take-off performance accounting for: (1) stall speed safety margins; (2) minimum control speeds; and (3) climb gradients. (b) For single-engine aeroplanes and Levels 1, 2, and 3 low-speed multi-engine aeroplanes, take-off performance includes the determination of ground roll and initial climb distance to 15 m (50 ft) above the take-off surface. (c) For high-speed multi-engine aeroplanes of Levels 1, 2, and 3, and for all Level-4 multi-engine aeroplanes, take-off performance includes a determination of the following distances after a sudden critical loss of thrust: (1) an aborted take-off at critical speed; (2) ground roll and initial climb to 11 m (35 ft) above the take-off surface; and (3) net take-off flight path.