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The first function is to act as a fuel shut-off valve. This is required to provide the crew with a means to prevent fuel reaching the engine in case of an engine fire. The second function is to allow the pilot to choose which tank feeds the engine. Many aircraft have the left tank and right tank selections available to the pilot. Some Cessna ...
Fuel dumping of an Airbus A340-600 above the Atlantic Ocean near Nova Scotia Fuel dump nozzle of an Airbus A340-300. Fuel dumping (or a fuel jettison) is a procedure used by aircraft in certain emergency situations before a return to the airport shortly after takeoff, or before landing short of the intended destination (emergency landing) to reduce the aircraft's weight.
Fuel being dumped (jettisoned) from the left wing tank of Boeing 747-400. In aviation, to jettison is to discard fuel, external stores or other expendable items. [1] [2] The item is usually jettisoned by operating a switch or handle; external stores may be separated from the aircraft by use of explosive bolts or a mechanism.
Fuel pressure gauge - Indicates the supply pressure of fuel to the carburetor (or in the case of a fuel-injected engine, to the fuel controller.) Fuel boost pump switch - Controls the operation of the auxiliary electric fuel pump to provide fuel to the engine before it starts or in case of failure of the engine-powered fuel pump.
The aircraft PACKs on the McDonnell Douglas DC-10/MD-11 and Lockheed L-1011 are located in the front of the aircraft beneath the flight deck. Nearly all jetliners have two PACKs, although larger aircraft such as the Boeing 747 , Lockheed L-1011 , and McDonnell-Douglas DC-10/ MD-11 have three.
The norm describes the test procedure for airborne equipment. 8.0 Vibration: Aircraft type dependent test checks the effects of vibration and the equipment's ability to operate during all vibration scenarios. 9.0 Explosion proofness: These tests subject the test article to an environment under vacuum, with a gaseous mixture of combustibles.
The float is lifted upward by inertia, closing the fuel inlet valve as if the fuel bowl was full of fuel. Cutting off the fuel supply causes the fuel-air ratio to become greater than sixteen to one, which is then too lean for combustion to take place, stopping the engine. [10] [11] The inverse is also true when the aircraft is in inverted ...
Thrust levers in a Boeing 747 Classic. The center and rear levers are used during flight, while the forward levers control reverse thrust.. Thrust levers or throttle levers are found in the cockpit of aircraft, and are used by the pilot, copilot, flight engineer, or autopilot to control the thrust output of the aircraft's engines, by controlling the fuel flow to those engines. [1]