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  • 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 ... external power receptacle. When the battery switch is turned on, electricity is supplied to the main power bus bar through the battery solenoid. Both the starter and the starter switch draw current from the main bus bar, but the starter…

  • Chapter 9: Flight Manuals and Other Documents › Powerplant

    Powerplant The Powerplant Limitations portion describes operating limitations on an aircraft’s reciprocating or turbine engine(s). These include limitations for takeoff power, maximum continuous power, and maximum normal operating power, which is the maximum power the engine can produce ... maximum oil and fuel pressures, oil and fuel grades, and propeller operating limits. [Figure 9-3] All reciprocating-engine powered aircraft must have a revolutions per minute (rpm) indicator for each engine. Aircraft equipped with a constant-speed propeller…

  • Chapter 2: Aeronautical Decision-Making › Hazard and Risk › V = EnVironment

    skill and experience levels may be lower than a pilot would like them to be. Pride can be a powerful external factor! Managing External Pressures Management of external pressure is the single most important key to risk management because ... risk factor category that can cause a pilot to ignore all the other risk factors. External pressures put time-related pressure on the pilot and figure into a majority of accidents. The use of personal standard operating procedures (SOPs…

  • Chapter 7: Aircraft Systems › Turbine Engines › Foreign Object Damage (FOD)

    deflectors, may also be utilized. Preflight procedures include a visual inspection for any sign of FOD. Turbine Engine Hot/Hung Start When the EGT exceeds the safe limit of an aircraft, it experiences a “hot start.” This is caused ... much fuel entering the combustion chamber or insufficient turbine rpm. Any time an engine has a hot start, refer to the AFM/POH or an appropriate maintenance manual for inspection requirements. If the engine fails to accelerate to the proper speed…

  • Chapter 7: Aircraft Systems › Electrical System

    maintain a sufficient electrical charge in the battery. Electrical energy stored in a battery provides a source of electrical power for starting the engine and a limited supply of electrical power for use in the event the alternator or generator ... alternator is more constant throughout a wide range of engine speeds. Some aircraft have receptacles to which an external ground power unit (GPU) may be connected to provide electrical energy for starting. These are very useful, especially during cold weather…

  • Chapter 3: Aircraft Construction › Alternate Types of Wings › The Powerplant

    Powerplant The powerplant usually includes both the engine and the propeller. The primary function of the engine is to provide the power to turn the propeller. It also generates electrical power, provides a vacuum source for some flight instruments…