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  • Chapter 13: Transition to Multiengine Airplanes › Operation of Systems › Fuel Crossfeed

    Fuel crossfeed systems are also unique to multiengine airplanes. Using crossfeed, an engine can draw fuel from a fuel tank located in the opposite wing. On most multiengine airplanes, operation in the crossfeed mode is an emergency procedure used ... crossfeed limitations and procedures that vary significantly among multiengine airplanes. Checking crossfeed operation on the ground with a quick repositioning of the fuel selectors does nothing more than ensure freedom of motion of the handle. To actually check crossfeed operation…

  • Chapter 14: Aircraft Fuel Systems › Aircraft Fuel Systems › Helicopter Fuel Systems

    fuel pressure warning lights are also common on jet transport aircraft. The sensors for these are located in the boost pump outlet line. They give an indication of possible boost pump failure. Fuel quantity gauges are important features ... aircraft. Indications exist for all tanks on a transport category aircraft. Often, these use a capacitance type fuel quantity indication system and a fuel totalizer as is discussed later in this chapter. The location of fuel instrumentation varies depending…

  • Chapter 2: Engine Fuel & Fuel Metering Systems › Basic Fuel System

    During starting, the boost pump forces fuel through a bypass in the engine-driven pump to the metering device. Once the engine-driven pump is rotating at sufficient speed, it takes over and delivers fuel to the metering device ... specified pressure. The airframe fuel system begins with the fuel tank and ends at the engine fuel system. The engine fuel system usually includes the engine-driven pumps and the fuel metering systems. In aircraft powered with a reciprocating engine…