CS 22.729  Retracting mechanism

CAA ORS9 Decision No. 1

(a) Each landing gear retracting mechanism and its supporting structure must be designed for the maximum flight load factors occurring with the gear retracted. 

(b) For retractable landing gears it must be shown that extension and retraction of the landing gear are possible without difficulty up to V_LO.

(c) A sailplane equipped with a nonmanually operated landing gear must have an auxiliary means of extending the gear.