HI.XI.H.K2
KnowledgeSystem and equipment malfunctions specific to the helicopter, including:
From the FAA library
- Chapter 4: Helicopter Components, Sections, and Systems › Main Rotor System › Rigid Rotor System
comprised of glass fiber reinforced material. The hub is a single piece of forged rigid titanium. The rigid rotor system is very responsive and is usually not susceptible to mast bumping like the semirigid systems because the rotor hubs ... fuselage to move together as one entity and eliminates much of the oscillation usually present in the other rotor systems. Other advantages of the rigid rotor include a reduction in the weight and drag of the rotor…
- Chapter 7: Aircraft Systems › Electrical System
useful, especially during cold weather starting. Follow the manufacturer’s recommendations for engine starting using a GPU. The electrical system is turned on or off with a master switch. Turning the master switch to the ON position provides electrical energy ... electrical equipment circuits except the ignition system. Equipment that commonly uses the electrical system for its source of energy includes: • Position lights • Anticollision lights • Landing lights • Taxi lights • Interior cabin lights • Instrument lights • Radio equipment • Turn indicator Fuel gauges Electric…
- Chapter 4: Helicopter Components, Sections, and Systems › Electrical Systems
Electrical Systems The electrical systems, in most helicopters, reflect the increased use of sophisticated avionics and other electrical accessories. [Figure 4-24] More and more operations in today’s flight environment are dependent on the aircraft’s electrical system; however ... helicopters can be safely flown without any electrical power in the event of an electrical malfunction or emergency. Helicopters have either a 14- or 28-volt, direct-current electrical system. On small, piston powered helicopters, electrical energy is supplied…
- 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…
- Chapter 11: Helicopter Emergencies and Hazards › System Malfunctions › Antitorque System Failure
System Malfunctions By following the manufacturer’s recommendations regarding operating limits and procedures and periodic maintenance and inspections, many system and equipment failures can be eliminated. Certain malfunctions or failures can be traced to some error on the part ... pilot; therefore, appropriate flying techniques and use of threat and error management may help to prevent an emergency Antitorque System Failure Antitorque failure usually falls into one of two categories. One is failure of the power drive portion…
- Chapter 7: Aircraft Systems › Oxygen Systems › Servicing of Oxygen Systems
Servicing of Oxygen Systems Before servicing any aircraft with oxygen, consult the specific aircraft service manual to determine the type of equipment required and procedures to be used. Certain precautions should be observed whenever aircraft oxygen systems ... serviced. Oxygen system servicing should be accomplished only when the aircraft is located outside of the hangars. Personal cleanliness and good housekeeping are imperative when working with oxygen. Oxygen under pressure creates spontaneous results when brought in contact with petroleum…