FH.XII.A.R10

From the FAA library

• Helicopter Flying Handbookp. 11-20
  Chapter 11: Helicopter Emergencies and Hazards › System Malfunctions › Loss of Tail Rotor Effectiveness (LTE)

  The key is not to put the helicopter in a compromising condition…

• Helicopter Flying Handbookp. 3-4
  Chapter 3: Helicopter Flight Controls › Antitorque Pedals › Heading Control

  Pressing on the left pedal has the opposite effect: the nose of the helicopter yaws to the left and the tail swings right. [Figure 3-6] With the antitorque pedals in the neutral position, the tail rotor has a medium ... positive pitch angle. In medium positive pitch, the tail rotor thrust approximately equals the torque of the main rotor during cruise flight, so the helicopter maintains a constant heading in level flight. A vertical fin or stabilizer is used…

• Helicopter Flying Handbookp. 1-4
  Chapter 1: Introduction to the Helicopter › Rotor System › Intermeshing Rotors

  shafts connected at both ends with flexible couplings. The flexible couplings allow the drive shaft to flex with the tail boom. Figure 1-7. Coaxial rotors. Figure 1-8. HH-43 Huskie with intermeshing rotors. Figure 1-9. Basic tail ... rotor components. The gearbox at the end of the tail boom provides an angled drive for the tail rotor and may also include gearing to adjust the output to the optimum rotational speed typically measured in revolutions per minute…

• Helicopter Flying Handbookp. 2-15
  Chapter 2: Aerodynamics of Flight › Hovering Flight › Translating Tendency (Drift)

  Translating Tendency (Drift) During hovering flight, a single main rotor helicopter tends to move in the direction of tail rotor thrust. This lateral (or sideward) movement is called translating tendency. [Figure 2-27] To counteract this tendency, one or more ... following features may be used. All examples are for a counterclockwise rotating main rotor disk. Figure 2-27. A tail rotor is designed to produce thrust in a direction opposite torque. The thrust produced by the tail rotor is sufficient…

• Aviation Maintenance Technician Handbook - Airframep. 2-29
  Chapter 2: Aerodynamics, Aircraft Assembly, & Rigging › Rotorcraft Controls › Antitorque Pedals

  cabin floor by the pilot’s feet. They control the pitch and, therefore, the thrust of the tail rotor blades. [Figure 2-49] Newton’s third law applies to the helicopter fuselage and how it rotates in the opposite direction ... main rotor blades unless counteracted and controlled. To make flight possible and to compensate for this torque, most helicopter designs incorporate an antitorque rotor or tail rotor. The antitorque pedals allow the pilot to control the pitch angle…