CH.VIII.A.S9
SkillUse appropriate flight control inputs to cushion the touchdown.
From the FAA library
- Chapter 11: Helicopter Emergencies and Hazards › Autorotation
provides better understanding of the necessary flight control inputs to achieve the desired airspeed, rotor rpm and autorotation performance, such as the maximum glide or minimum descent airspeed. The decision to use the appropriate airspeed and rotor ... some getting used to. The flare to land at 80 knots indicated airspeed (KIAS) will be significantly greater than that from 55 KIAS. Rotor rpm control is critical at these points to ensure adequate rotor energy for cushioning the landing…
- Chapter 11: Helicopter Emergencies and Hazards › Autorotation › Common Errors
transition into the descent on entry. 5. Improper use of anti-torque on entry. 6. Failure to establish the appropriate crosswind correction, allowing the aircraft to drift. Failure to maintain coordinated flight through the tum. Failure to maintain rotor ... attitude. 16. Landing with aircraft not aligned with the direction of travel. 17. Insufficient collective cushioning during full autorotations. 18. Abrupt control inputs on touchdown during full autorotations…
- Chapter 1: Introduction to the Helicopter › Controlling Flight › Throttle
Throttle Helicopter rotors are designed to operate at a specific rpm. Figure 1-11. The throttle control mounted at the end of the collective control. The throttle controls the power produced by the engine, which is connected to the rotor ... maintain enough engine power to keep the rotor rpm within allowable limits to produce enough lift for flight. In single-engine helicopters, if so equipped, the throttle control is typically a twist grip mounted on the collective control…
- Chapter 2: Aerodynamics of Flight › Hovering Flight
Hovering Flight Hovering is the most challenging part of flying a helicopter. This is because a helicopter generates its own gusty air while in a hover, which acts against the fuselage and flight control surfaces. The end result is constant ... control inputs and corrections by the pilot to keep the helicopter where it is required to be. Despite the complexity of the task, the control inputs in a hover are simple. The cyclic is used to eliminate drift…
- Chapter 3: Helicopter Flight Controls
fundamentals and theory and how they relate to flying a helicopter. This chapter also explained how aerodynamics affect helicopter flight and how important it is for pilots to understand aerodynamic principles and be prepared to react to these effects ... additional information on aerodynamics, refer to the aerodynamics of flight portion of the Pilot’s Handbook of Aeronautical Knowledge. Figure 2-48. Force vectors in vertical autorotation descent. Figure 2-49. Blade regions in forward autorotation descent. Chapter 3: Helicopter…
- Chapter 6: Flight Controls
addition, in some large and fast aircraft, controls are boosted by hydraulically or electrically actuated systems. In both the fly-by-wire and boosted controls, the feel of the control reaction is fed back to the pilot by simulated means ... Current research at the National Aeronautics and Space Administration (NASA) Dryden Flight Research Center involves Intelligent Flight Control Systems (IFCS). The goal of this project is to develop an adaptive neural network-based flight control system. Applied directly to flight…