HI.VII.C.S4

From the FAA library

• Helicopter Flying Handbookp. 11-18
  Chapter 11: Helicopter Emergencies and Hazards › System Malfunctions › Loss of Tail Rotor Effectiveness (LTE)

  helicopters. The respect and discipline pilots exercise in following flight manuals should also be applied to understanding aerodynamic conditions. If flight envelopes are exceeded, the end results can be catastrophic. LTE is an aerodynamic condition and is the result ... control margin deficiency in the tail rotor. It can affect all single-rotor helicopters that utilize a tail rotor. The design of main and tail rotor blades and the tail boom assembly can affect the characteristics and susceptibility…

• Helicopter Flying Handbookp. 3-4
  Chapter 3: Helicopter Flight Controls › Antitorque Pedals › Heading Control

  Pressing on the left pedal has the opposite effect: the nose of the helicopter yaws to the left and the tail swings right. [Figure 3-6] With the antitorque pedals in the neutral position, the tail rotor has a medium ... positive pitch angle. In medium positive pitch, the tail rotor thrust approximately equals the torque of the main rotor during cruise flight, so the helicopter maintains a constant heading in level flight. A vertical fin or stabilizer is used…

• Helicopter Flying Handbookp. 9-11
  Chapter 9: Basic Flight Maneuvers › Taxiing › Technique

  cross-hatched or shaded areas of the height/velocity diagram (see Figure 7-1). Additionally, be aware of crosswind conditions that could lead to loss of tail rotor effectiveness. Pick out two references directly in front of the helicopter ... ground path desired. These reference points should be kept in line throughout the maneuver. Technique The helicopter should be in a stationary position on the surface with the collective full down and the rpm the same as that used…

• Helicopter Flying Handbookp. 9-9
  Chapter 9: Basic Flight Maneuvers › Hovering—Sideward Flight › Technique

  Exaggerated movement of the cyclic, resulting in erratic movement over the surface. Figure 9-7. To maintain a straight ground track, use two reference points in line and at some distance in front of the helicopter. Failure to use proper ... antitorque pedal control, resulting in excessive heading change. 3. Failure to maintain desired hovering height. 4. Failure to maintain proper rpm. 5. Failure to maintain alignment with direction of travel. Hovering—Sideward Flight Sideward hovering flight may be necessary…

• Helicopter Flying Handbookp. 2-15
  Chapter 2: Aerodynamics of Flight › Hovering Flight › Translating Tendency (Drift)

  Translating Tendency (Drift) During hovering flight, a single main rotor helicopter tends to move in the direction of tail rotor thrust. This lateral (or sideward) movement is called translating tendency. [Figure 2-27] To counteract this tendency, one or more ... following features may be used. All examples are for a counterclockwise rotating main rotor disk. Figure 2-27. A tail rotor is designed to produce thrust in a direction opposite torque. The thrust produced by the tail rotor is sufficient…

• Helicopter Flying Handbookp. 9-10
  Chapter 9: Basic Flight Maneuvers › Taxiing › Air Taxi

  however, it is expected that the helicopter will remain below 100 feet AGL with an appropriate airspeed and will avoid over flight of other aircraft, vehicles, and personnel. Figure 9-9. Hover taxi. Flying in the cross-hatched or shaded ... area of the height/velocity diagram. 7. Flying in a crosswind that could lead to loss of tail rotor effectiveness. 8. Excessive tail-low attitudes. 9. Excessive power used or required to stop. 10. Failure to maintain alignment with direction…