FH.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. 11-12
  Chapter 11: Helicopter Emergencies and Hazards › Dynamic Rollover › Critical Conditions

  Critical Conditions Certain conditions reduce the critical rollover angle, thus increasing the possibility for dynamic rollover and reducing the chance for recovery. The rate of rolling motion is also a consideration because, as the roll rate increases, there ... reduction of the critical rollover angle at which recovery is still possible. Other critical conditions include operating at high gross weights with thrust (lift) approximately equal to the weight. Refer to Figure 11-5. The following conditions are most critical…

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

  riding down a steep track on a roller coaster is experiencing less than one G or low-G conditions. The best way for a pilot to recognize low G is a weightless feeling similar to the start of a downward ... vector provides a moment about the center of gravity to pitch or roll the fuselage. In a low-G condition, the thrust and consequently the control authority are greatly reduced. Although their control ability is reduced, multi-bladed (three…

• 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…

• 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…