1. Maximum Continuous Power (MCPC)/Maximum Power Check (MPC)

TM-1-1520-240-MTF Army Model CH-47D Heilcopter (EIC:RCD) Manual
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TM 1-1520-240-MTF 4-24 1-36. 1. Maximum Continuous Power (MCPC)/Maximum Power Check (MPC): a. Stabilize airspeed at 120 KIAS. with RRPM 100%. b. Pilot’s or Copilot’s altimeter set to 29.92. c. Determine required minimum TRQ for Maximum Continous Power Check (MCPC) from figure 5-11. (not to exceed 123%) and the maximum continuous N1 speed from figure 5-14 (Refer to Section V.) for MCPC. d. Determine required minimum TRQ for Maximum Power Check (MPC) from figure 5-12. (not to exceed 123%) and the maximum N1 speed from figure 5-14 (Refer to Section V.) for MPC. e. ENG COND lever of engine not being checked — Slowly retard towards GND until the predetermined minimum required torque (from step c - above) is attained. Ensure that ENG PTIT for engine being checked does not exceed the MCPC temperature limit from figure 5-13 (Refer to Section V.) or the maximum continuous N1 speed. If MCPC temperature limit or maximum continuous N1 speed is reached prior to required minimum TRQ being attained, stop the PAC on this engine, and proceed to step j. f. Raise THRUST CONT lever once the ENG COND lever is in the GND position, if required, to obtain minimum TRQ while ensuring the maximum PTIT or maximum continuous N1 limits of figures 5-14 and 5-13 respectively (Refer to Section V) are not exceeded.

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