TM 1-1520-240-MTF2-72B HOVER (CONT.) b.714A Torque Differential Check.(1) While stable on the ground, flat pitch,100% RRPM and FADEC in PRI moveNo. 2 ECL to the Ground detent. EnsureRRPM is 100%. Increase thrust untilaircraft is stabilized at 5 to 20 foot aftwheel height while ensuring RRPM is100%. Record TQ and N1 values on No.1 engine when stabilized.(2) Maintaining a constant thrust positionslowly bring the No. 2 ECL to the FLTposition while monitoring the RRPM at100%. Reduce No. 1 ECL smoothly tothe ground position while monitoringRRPM at 100%. When No. 1 ECL is atGND position record TQ and N1 valueson the No. 2 engine.(3) Smoothly decrease thrust to grounddetent. Smoothly advance No. 1 ECL toflight position. Ensure RRPM 100%.(4) Difference will be no greater than 6%between No. 1 and No. 2 ENG TQvalues.17. Droop Eliminator.a. Establish 100 percent rotor rpm in theground detent.b. AFCS SYSTEM SEL — BOTH.c. Lift off to stabilized hover, 15 to 20 feet aftwheel height.d. Check 100% rotor rpm (+0 -1.0%),maximum stabilized droop. Maximumstabilized torque split 712 6%, 714A 4%.
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
