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  • Chapter 5: Engine Starting Systems › Direct Cranking Electric Starter › Direct Cranking Electric Starting System for Small Aircraft

    Most small, reciprocating engine aircraft employ a direct cranking electric starting system. Some of these systems are automatically engaged starting systems, while others are manually engaged. Manually engaged starting systems used on many older, small aircraft employ a manually operated ... overrunning clutch drive pinion to transmit power from an electric starter motor to a crankshaft starter drive gear. [Figure 5-8] A knob or handle on the instrument panel is connected by a flexible control to a lever…

  • Chapter 5: Engine Starting Systems › Gas Turbine Engine Starters

    This valve directs hot gas to the turbine, bypassing the hot gas nozzle, as the pressure rises above the preset maximum. Thus, the pressure of the gas within the hot gas circuit is maintained at the optimum level ... fuel combustion starter was used to start gas turbine engines by using the combustion energy of jet A fuel and compressed air. The starter consists of a turbine-driven power unit and auxiliary fuel, air, and ignition systems. Operation…

  • Chapter 9: Aircraft Electrical System › Aircraft Electrical Systems › Small Single-Engine Aircraft

    would disconnect the alternator from the bus. Figure 9-82. Schematic GCU control of the exciter field magnetism. Aircraft Electrical Systems Virtually all aircraft contain some form of an electrical system. The most basic aircraft must produce electricity for operation ... engine’s ignition system. Modern aircraft have complex electrical systems that control almost every aspect of flight. In general, electrical systems can be divided into different categories according to the function of the system. Common systems include lighting, engine starting…