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Uncommanded trim with autopilot disengaged

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Hi there, I've noticed that when hand flying a departure with LNAV and VNAV armed and the autopilot disengaged, that at flap acceleration hieght, the aircraft trims the elevators a little. Does anyone know what section of what manual I can read to find out more about what is going on here logic wise? Thanks,

signal_runner

PPL

FSX (SP2), Active Sky Next,REX, Thrustmaster Warthog

This is the Speed Trim system. FCOM Vol 2, Section 9.20.9

Jim Barrett

Licensed Airframe & Powerplant Mechanic, Avionics, Electrical & Air Data Systems Specialist. Qualified on: Falcon 900, CRJ-200, Dornier 328-100, Hawker 850XP and 1000, Lear 35, 45, 55 and 60, Gulfstream IV and 550, Embraer 135, Beech Premiere and 400A, MD-80.

Speed trim probably. Page 9.20.9 (425) in FCOM 2. EDIT: Too slow. :(

  • Author

excellent - thank you very much.

signal_runner

PPL

FSX (SP2), Active Sky Next,REX, Thrustmaster Warthog

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