FH.XI.I.R1

From the FAA library

• Helicopter Flying Handbookp. 11-14
  Chapter 11: Helicopter Emergencies and Hazards › Low-G Conditions and Mast Bumping

  control. Therefore, low-G conditions can be catastrophic for two-bladed helicopters. At lower speeds, such as initiation of a takeoff from hover or the traditional recovery from vortex ring state, forward cyclic maneuvers do not cause low G ... pushover from moderate or high airspeed, as the helicopter noses over, it enters a low-G condition. Thrust is reduced, and the pilot has lost control of fuselage attitude but may not immediately realize it. Tail rotor thrust or other…

• Pilot's Handbook of Aeronautical Knowledgep. 6-2
  Chapter 6: Flight Controls › Flight Control Systems › Primary Flight Controls

  Flight Control Systems Flight Controls Aircraft flight control systems consist of primary and secondary systems. The ailerons, elevator (or stabilator), and rudder constitute the primary control system and are required to control an aircraft safely during flight. Wing flaps, leading ... edge devices, spoilers, and trim systems constitute the secondary control system and improve the performance characteristics of the airplane or relieve the pilot of excessive control forces. Primary Flight Controls Aircraft control systems are carefully designed to provide adequate responsiveness…

• Helicopter Flying Handbookp. 1-6
  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 ... 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, but it can also be a lever mechanism in fully governed…

• Pilot's Handbook of Aeronautical Knowledgep. 6-10
  Chapter 6: Flight Controls › Flight Control Systems › Trim Tabs

  surface hits the tab and forces the trailing edge of the elevator up, reducing the elevator’s AOA. This causes the tail of the aircraft to move down and the nose to move up. In spite of the opposing directional ... movement of the trim tab and the elevator, control of trim is natural to a pilot. If the pilot needs to exert constant back pressure on a control column, the need for nose-up trim is indicated. The normal trim…

• Aviation Instructor's Handbookp. 9-8
  Chapter 9: Techniques of Flight Instruction › Positive Exchange of Flight Controls › Procedure

  Procedure During flight training, there should always be a clear understanding between learners and flight instructors about who has control of the aircraft. The preflight briefing should include procedures for the exchange of flight controls. A positive three-step process ... exchange of flight controls between pilots is a proven procedure and one that is strongly recommended. When an instructor is teaching a maneuver to a learner, the instructor normally demonstrates the maneuver first, then has the learner follow along…