Text in force at 29-59: from 29-40, effective 10 Jun 1996.
[The takeoff performance must be determined and scheduled so that, if one engine fails at any time after the start of takeoff, the rotorcraft can--
(a) Return to, and stop safely on, the takeoff area; or
(b) Continue the takeoff and climbout, and attain a configuration and airspeed allowing compliance with Sec. 29.67(a)(2). ]
61 FR 21899 · Source