CS 22.361  Engine torque

CAA ORS9 Decision No. 1

(a) The engine mount and its supporting structure must be designed for the effects of: 

(1) the limit torque corresponding to take-off power and propeller speed, acting simultaneously with 75% of the limit loads from flight condition A of CS 22.333(b); 

(2) the limit torque corresponding to the maximum continuous power and propeller speed, acting simultaneously with the limit loads from flight condition A of CS 22.333(b). 

(b) For reciprocating engines the limit torque to be accounted for in CS 22.361(a) is obtained by multiplying the mean torque by one of the following factors: 

(1) 1.33 for engines with 5 or more cylinders; 

(2) 2 for engines with 4 cylinders; 

(3) 3 for engines with 3 cylinders;  (4)     4 for engines with 2 cylinders.