§23.69 (Enroute climb/descent.)

[(a) All engines operating. The steady gradient and rate of climb must be determined at each weight, altitude, and ambient temperature within the operational limits established by the applicant with-- (1) Not more than maximum continuous power on each engine; (2) The landing gear retracted; (3) The wing flaps retracted; and (4) A climb speed not less than 1.3 . (b) One engine inoperative. The steady gradient and rate of climb/descent must be determined at each weight, altitude, and ambient temperature within the operational limits established by the applicant with-- (1) The critical engine inoperative and its propeller in the minimum drag position; (2) The remaining engine(s) at not more than maximum continuous power; (3) The landing gear retracted; (4) The wing flaps retracted; and (5) A climb speed not less than 1.2 .]