航空術(shù)語詞典Dictionary of Aeronautical Terms 中

時間：2011-03-11 23:13來源：藍天飛行翻譯 作者：admin 點擊：次

Boost pumps in the fuel tanks move the fuel from the tank into a fuel manifold. From the fuel manifold it flows away from the aircraft through dump chutes in each wing tip. The dumped fuel evaporates and is diluted by the air, so it causes no danger to people on the ground. Fuel jettison systems are designed and constructed in such a way that they are free from fire hazards.
fuel load. The expendable part of the load of the aircraft. Fuel load includes only the fuel that is usable in flight.
fuel nozzle (gas turbine engine component). The nozzle in a gas turbine engine combustor through which the fuel is discharged. The spray pattern from the fuel nozzle is such that the flame is always centered in the burner so it will not overheat it.
fuel-oil heat exchanger (gas turbine engine component). A heat exchanger used on turbine engines to take heat from the engine oil and put it into the fuel. The fuel flows through tubes that pass through the hot engine oil. Heat from the oil enters the fuel and raises its temperature, and at the same time, the temperature of the oil is lowered.
“Fuel remaining” (air traffic control). A phrase used by either pilots or controllers that relates to the fuel remaining on board until actual fuel exhaustion. When transmitting such information in response to either a controller question or pilot initiated cautionary advisory to air traffic control, pilots will state the approximate number of minutes the flight can continue with the fuel remaining. All reserve fuel should be included in the time stated, as should an allowance for established fuel gage system error.
fuel syphoning. Unintentional release of fuel from an aircraft, caused by overflow, puncture, loose tank caps, etc.
fuel totalizer. A fuel quantity indicator that gives the total amount of fuel remaining on board the aircraft on one instrument. The totalizer adds the quantities of fuel in all of the tanks.
fulcrum. The point about which a lever balances.

full-bodied (finishing system component condition).
Not thinned.
full-register position (aircraft magneto timing). The position of the rotating magnet in an aircraft magneto in which the poles of the magnet are aligned with the pole shoes. The maximum number of lines of flux pass from the magnet through the core of the coil when the magnet is in its full-register position.

full-rich (fuel metering system condition). The position of the mixture control in the fuel metering system of a reciprocating engine that meters the maximum amount of fuel to the engine.
full-scale drawing (mechanical drawing). A drawing of a part drawn to the full size of the part.
full-wave rectifier (electronic circuit). A type of rectifier circuit used to change alternating current into direct current that uses both the positive and negative alternation of the AC.

fully articulated rotor. A helicopter rotor whose blades are attached to the hub in such a way that they are free to flap, drag, and feather. See each of these terms.

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