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  • Chapter 5: Aerodynamics of Flight › Weight and Balance › Effect of Load Distribution

    Steering difficulties on the ground may occur in nosewheel-type aircraft, particularly during the landing roll and takeoff. The effects of load distribution are summarized as follows: • The CG position influences the lift and AOA of the wing, the amount ... relationship to elevator control force. • The aircraft stalls at a higher speed with a forward CG location. This is because the stalling AOA is reached at a higher speed due to increased wing loading. • Higher elevator control forces normally exist…

  • 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…

  • 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…

  • 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…

  • Chapter 10: Teaching Practical Risk Management during Flight Instruction › Notes on Instructional Risk Management in the Flight Deck › Managing Risk while Teaching Landings

    Excessive teaching and coaching on final approach may cause missed radio transmissions from air traffic control or aircraft in the pattern. To avoid this, the instructor should only use concise prompting on approach to landings with the learner. Certain landings ... present unique risks. The instructor teaches the appropriate pre-landing reconnaissance for unfamiliar landing areas or uncontrolled fields. During landings in strong winds, the instructor should have the skill sufficient to deal with the wind conditions. During a short-field…

  • Chapter 10: Advanced Flight Maneuvers › Slope Operations › Technique

    surface, reduce the collective to full down, and neutralize the cyclic and pedals (frame 4). Normal operating rpm should be maintained until the full weight of the helicopter is on the landing gear. This ensures adequate ... immediate takeoff in case the helicopter starts sliding down the slope. Use antitorque pedals as necessary throughout the landing for heading control. Before reducing the rpm, move the cyclic control as necessary to check that the helicopter is firmly…