SH.I.G.K1

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• Aeronautical Information Manualp. 10-1-1
  Chapter 10. Helicopter Operations › Section 1. Helicopter IFR Operations › 10-1-1. Helicopter Flight Control Systems

  Chapter 10. Helicopter Operations Section 1. Helicopter IFR Operations 10-1-1. Helicopter Flight Control Systems a. The certification requirements for helicopters to operate under Instrument Flight Rules (IFR) are contained in 14 CFR part 27, Airworthiness Standards: Normal Category ... Rotorcraft, and 14 CFR part 29, Airworthiness Standards: Transport Category Rotorcraft. To meet these requirements, helicopter manufacturers usually utilize a set of stabilization and/or Automatic Flight Control Systems (AFCSs). b. Typically, these systems fall into the following categories: 1. Aerodynamic…

• 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. 4-16
  Chapter 4: Helicopter Components, Sections, and Systems › Hydraulics

  Hydraulics Most helicopters, other than smaller piston-powered helicopters, incorporate the use of hydraulic actuators to overcome high control forces. [Figure 4-25] A typical hydraulic system consists of actuators, also called servos, on each flight control, a pump which ... usually driven by the main rotor transmission and a reservoir to store the hydraulic fluid. Some helicopters have accumulators located on the pressure side of the hydraulic system. This allows for a continuous fluid pressure into the system. A switch…

• Aviation Maintenance Technician Handbook - Airframep. 12-7
  Chapter 12: Hydraulic & Pneumatic Power Systems › Hydraulic Power Systems › Evolution of Hydraulic Systems

  Hydraulic Power Systems Evolution of Hydraulic Systems Smaller aircraft have relatively low flight control surface loads, and the pilot can operate the flight controls by hand. Hydraulic systems were utilized for brake systems on early aircraft. When aircraft started ... faster and got larger in size, the pilot was not able to move the control surfaces by hand anymore, and hydraulic power boost systems were introduced. Power boost systems assist the pilot in overcoming high control forces, but the pilot…