CH.IV.C.S4
SkillMaintain desired track and groundspeed in headwind and crosswind conditions, avoiding conditions that might lead to loss of tail rotor/antitorque effectiveness.
From the FAA library
- 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…
- 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…
- Chapter 11: Helicopter Emergencies and Hazards › Low Rotor RPM and Rotor Stall
Other causes of a power-on low rotor rpm condition include the pilot rolling the throttle the wrong way in helicopters not equipped with a governor or a governor failure in helicopters so equipped. As the rpm decreases, the amount ... horsepower the engine can produce also decreases. Engine horsepower is directly proportional to its rpm, so a 10 percent loss in rpm due to overpitching, or one of the other scenarios above, will result in a 10 percent loss…
- 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…
- Chapter 13: Effective Aeronautical Decision-Making › Risk Management › Assessing Risk
example, when the pilot has not adequately planned the flight and the pilot subsequently fails to maintain adequate situational awareness to avoid the terrain, a CFIT accident occurs. While the reasons for individual helicopter incidents vary, it can be argued ... purpose, a helicopter usually flies closer to terrain than does a fixed-wing aircraft. Subsequently, minimal time exists to avoid CFIT, weather related, or loss of control type incidents that require quick and accurate assessments. Fixed-wing aircraft normally…
- Chapter 6: Takeoffs and Departure Climbs › Crosswind Takeoff › Takeoff Roll
Crosswind Takeoff While it is usually preferable to take off directly into the wind whenever possible or practical, there are many instances when circumstances or judgment indicate otherwise. Therefore, the pilot must be familiar with the principles and techniques involved ... crosswind takeoffs, as well as those for normal takeoffs. A crosswind affects the airplane during takeoff much as it does during taxiing. With this in mind, the pilot should be aware that the technique used for crosswind correction during takeoffs…