March 3, 200422 yr Hello, I found a real 767 ops checklist online and it stated in the climb section "Reaching and at every change of cruise level perform the FCTM-Minimum Drag Trim Technique procedure" does anyone know what this is and how its performed? Also at what altitude would you start and stop doing it? Thank you :-wave
March 4, 200422 yr Hey November,Here is a quote from an airlines 767 training notes. This is a procedure that would be done during cruise. By following this procedure you are ensuring the aircraft is in trim with the minimum amount of required control surface deflection (and therefore drag) to keep the aircraft in trim. This procedure is not limited to the 767 and is used on most if not all (except plastic jets maybe)large multi-engine transports."To trim the airplane, set and maintain a balanced thrust condition. Check fuel quantities for lateral balance. With an autopilot engaged, allow the airplane to stabilize on a constant heading. Trim therudder in the direction of the down wing. Apply trim in increments, allowing the bank to stabilize aftereach trim input. When the bank is zero, rudder trim is set correctly. Proper aileron trim position willbe held by the autopilot. If the airplane is properly rigged, this should result in an approximatelyneutral wheel.With autopilot disengaged, hold wings level with the control wheel using the ADI for reference. Trim out any control wheel forces using aileron trim. Re-engage autopilot.CAUTION: Use of aileron trim while autopilot is engaged is prohibited.These trim techniques will result in minimum drag. The aircraft should be in trim for autoland approaches to assure autopilot authority limit is not degraded.Kevin in CYOW
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