CS 22.1521 Power-plant limitations
CAA ORS9 Decision No. 1
(a) General. The power-plant limitations prescribed in this paragraph must be established so that they do not exceed the corresponding limits for which the engine or propeller is type certificated.
(b) Take-off and continuous operation. The take-off and continuous operation must be limited by:
(1) the maximum rotational speeds (r.p.m.);
(2) the time limit for the use of take-off power;
(3) the maximum allowable cylinder head, oil, and liquid coolant temperatures, as appropriate; and
(4) the maximum allowable manifold pressure or any other parameter limiting the engine power if the engine is equipped with a continuously variable pitch propeller.