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  • Chapter 9: Basic Flight Maneuvers › Turns › Technique

    Common Errors 1. Failure to trim the helicopter properly, tending to hold antitorque pedal pressure and opposite cyclic. This is commonly called cross-controlling. 2. Failure to maintain desired airspeed. 3. Failure to hold proper control position to maintain desired ... pedals to assist the turn. Use the pedals only to compensate for torque to keep the helicopter in trim around the vertical axis. [Figure 9-2] Keeping the fuselage in the correct streamlined position around the vertical axis facilitates…

  • Chapter 9: Basic Flight Maneuvers › Hovering Turn › Technique

    purpose of the vertical stabilizer is to unload the work of the antitorque system and to aid in trimming the helicopter in flight should the antitorque system fail. The horizontal stabilizer provides for a more usable CG range and aids ... trimming the helicopter longitudinally. Because of the helicopter’s tendency to weathervane, maintaining the same rate of turn from the 180° position actually requires some pedal pressure opposite the direction of turn. If a pilot does not apply opposite pedal…

  • Chapter 11: Helicopter Emergencies and Hazards › Autorotation › RPM Control

    flight evaluations which indicate that the simultaneous application of aft cyclic, down collective, and alignment with the relative wind (trim) at a wide range of airspeeds, including cruise airspeeds, is critical for all operations during the entry of an autorotation ... power off autorotations. As long as the line of cyclic movement is parallel with the flight path of the helicopter (trimmed), the aft movement of the cyclic also creates greater air flow up through the bottom of the rotor disk…

  • Chapter 9: Basic Flight Maneuvers › Straight-and-Level Flight › Technique

    power setting to maintain level flight by adjusting the collective. [Figure 9-1] The horizontal stabilizer aids in trimming the helicopter about its transverse, horizontal axis, and reduces the amount of nose tuck that would occur. On several helicopters ... coordinated change of the throttle to maintain a constant rpm. Additionally, the antitorque pedals need to keep the helicopter in trim around the vertical axis. To increase airspeed in straight-and-level flight, apply forward pressure on the cyclic…

  • Chapter 3: Helicopter Flight Controls › Antitorque Pedals

    pilot to control the pitch angle of the tail rotor blades, which in forward flight puts the helicopter in longitudinal trim and, while at a hover, enables the pilot to turn the helicopter 360°. The antitorque pedals are connected…

  • Chapter 10: Advanced Flight Maneuvers › Steep Approach › Technique

    approach angle and rate of descent with the collective, rate of closure with the cyclic, and trim with antitorque pedals. The helicopter should be kept in trim just prior to loss of effective translational lift (approximately 25 knots). Below…