HI.V.C.K1

From the FAA library

• Pilot's Handbook of Aeronautical Knowledgep. 7-18
  Chapter 7: Aircraft Systems › Starting System

  starter engages the aircraft flywheel, rotating the engine at a speed that allows the engine to start and maintain operation. Electrical power for starting is usually supplied by an onboard battery, but can also be supplied by external power through ... starter switch draw current from the main bus bar, but the starter will not operate until the starting solenoid is energized by the starter switch being turned to the “start” position. When the starter switch is released from the “start…

• Helicopter Flying Handbookp. 4-12
  Chapter 4: Helicopter Components, Sections, and Systems › Dual Tachometers › Clutch

  rotor must be disconnected from the engine when the starter is engaged. A clutch allows the engine to be started and then gradually pick up the load of the rotor. Figure 4-20. The main rotor transmission reduces engine output ... coupling between the gas producer turbine and the power (takeoff) turbine functions as an air clutch for starting purposes. When the engine is started, there is little resistance from the power turbine. This enables the gasproducer turbine to accelerate…

• Helicopter Flying Handbookp. 8-3
  Chapter 8: Ground Procedures and Flight Preparations › Engine Start and Rotor Engagement

  Engine Start and Rotor Engagement During the engine start, rotor engagement, and systems ground check, use the manufacturer’s checklists. If a problem arises, have it checked before continuing. Prior to performing these tasks, however, make sure the area around ... rotor blades so that they are not aligned with the fuselage. This may prevent the engine from being started with the blades still fastened. For a two-bladed rotor system, position the blades so that they are perpendicular…

• Pilot's Handbook of Aeronautical Knowledgep. 11-11
  Chapter 11: Aircraft Performance › Climb Performance Factors › Region of Reversed Command

  Region of Reversed Command The aerodynamic properties of an aircraft generally determine the power requirements at various conditions of flight, while the powerplant capabilities generally determine the power available at various conditions of flight. When an aircraft is in steady ... level flight, a condition of equilibrium must prevail. An unaccelerated condition of flight is achieved when lift equals weight, and the powerplant is set for thrust equal to drag. The power required to achieve equilibrium in constant-altitude flight…

• Helicopter Flying Handbookp. 11-25
  Chapter 11: Helicopter Emergencies and Hazards › VFR Flight into Instrument Meteorological Conditions

  more conservative than those required by regulations for VFR flight. In addition, a thorough preflight and understanding of weather conditions that may contribute to the risk of IMC developing along a planned route of flight is essential for safety. Pilots ... should recognize deteriorating weather conditions so the route of flight can be changed or a decision made to terminate the flight and safely land at a suitable area, well before IIMC occurs. If weather conditions deteriorate below the pilot…

• Pilot's Handbook of Aeronautical Knowledgep. 11-5
  Chapter 11: Aircraft Performance › Performance › Straight-and-Level Flight

  Straight-and-Level Flight All of the principal components of flight performance involve steady-state flight conditions and equilibrium of the aircraft. For the aircraft to remain in steady, level flight, equilibrium must be obtained by a lift equal ... speed, induced drag predominates at low speed. [Figure 11-5] For example, if an aircraft in a steady flight condition at 100 knots is then accelerated to 200 knots, the parasite drag becomes four times as great, but the power…