Anti-Eisbildung
Preventive treatment applied to aircraft surfaces to inhibit the formation of ice during flight or ground operations, usually by applying specialized fluids or activating onboard systems.
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Fueling Deicing
Browse Fueling Deicing terms for pilots, air traffic controllers, cabin crew and aviation learners.
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APU-Kraftstoffzufuhr
The dedicated fuel supply system or operation that delivers fuel from the aircraft's tanks to the Auxiliary Power Unit (APU) for operation.
View termDruckbetankung
Refueling by forcing fuel under pressure through a closed coupling to aircraft tanks.
View termDüsendruck
The pressure at which de-icing or anti-icing fluid is delivered through equipment nozzles, affecting spray coverage and contaminant removal efficiency.
View termEinpunktbetankung
Method of pressurised refueling using one connector that simultaneously feeds all aircraft tanks.
View termEnteisung
The process of removing existing ice, frost, or snow from aircraft surfaces, typically wings, tail, and control surfaces, to ensure safe flight operations.
View termEntlüftungspanel
A dedicated panel or port that allows air pressure equalization or controlled venting in fuel tanks or systems, critical for safe operation and maintenance.
View termErdungskabel
Flexible conductor that equalises electrical potential between aircraft and refueling equipment to prevent static discharge.
View termErste Flüssigkeit
The initial de-icing or anti-icing fluid applied to remove contaminants from aircraft surfaces, typically a heated mixture.
View termFlügeltank
A fuel tank located within the wing structure of an aircraft, commonly used for storage and balancing fuel load.
View termGefrierpunkt des Kraftstoffs
The lowest temperature at which aviation fuel can remain fluid. If fuel cools below this point, it begins to solidify and can block filters and lines, causing engine failure.
View termGlykolrückgewinnung
The process of collecting used glycol-based de-icing or anti-icing fluids from airport surfaces after application for environmental management and recycling.
View termHeißdüse
A component of ground de-icing equipment that delivers heated anti-icing or de-icing fluid under pressure for effective removal of ice and snow.
View termKlareis
A transparent, smooth, and hard ice layer formed by the slow freezing of supercooled water droplets on aircraft surfaces, posing a significant aerodynamic hazard.
View termKontrollzeit
The exact recorded time at which a de-icing or anti-icing procedure is completed or a specific check (such as a pre-takeoff check) is performed, critical for holdover validity.
View termKraftstoff ablassen
The process of removing fuel from an aircraft’s tanks, usually for maintenance, balancing, or to comply with regulatory requirements such as weight limits.
View termKraftstoff-Scherkupplung
A safety device in fuel systems designed to disconnect or break under excessive force, preventing fuel spillage and system damage during abnormal events.
View termKraftstoff-Zusatzbeimischung
The process of adding specific chemical additives to aviation fuel to improve its properties, such as preventing microbial growth or improving combustion characteristics, as per maintenance or operational requirements.
View termKraftstoffabschöpfung
The operation of removing remaining fuel from tanks or lines, especially from areas not emptied by normal fuel pump operation, to ensure all usable fuel is made available.
View termKraftstoffalterung
The process by which stored aviation fuel undergoes chemical changes over time, leading to potential deterioration of quality and operational suitability.
View termKraftstoffausgleich
The procedure or system of transferring fuel between tanks or sides of the aircraft to maintain balance or correct asymmetry during flight.
View termKraftstoffbeleg
Document provided by the fuel supplier showing quantity, density, time and place of fuel uplift, signed by the aircraft captain.
View termKraftstoffbetankung
Quantity of fuel added during a refuelling operation, expressed in kilograms, litres or pounds.
View termKraftstoffdichte
Measured mass per unit volume of fuel, expressed for aviation as kilograms per litre, used for accurate fuel weight calculations.
View termKraftstoffentlüftung
A device or opening that allows vapors and air to escape or enter aircraft fuel tanks to maintain pressure balance and prevent vacuum or overpressure during operation.
View termKraftstofffilter
A device in the fuel system designed to remove contaminants from aviation fuel before it reaches the engine or fuel system components. Ensures only clean fuel is delivered to prevent engine malfunction or damage.
View termKraftstoffkupplung
Mechanical fitting connecting hydrant hose to aircraft or fueling truck manifold.
View termKraftstoffleck
An unintentional escape of fuel from tanks, lines, or components, posing a safety and fire hazard requiring immediate notification to ATC and maintenance.
View termKraftstoffprobe
Procedure of drawing a representative fuel sample from tanks or hydrant points to check for water, particulates or other contaminants.
View termKraftstoffsumpf
A low point or reservoir in an aircraft fuel tank or system where water, debris, and contaminants collect and can be drained during preflight checks.
View termKraftstofftank-Betreten
The procedure of authorized personnel physically entering an aircraft fuel tank for inspection, cleaning, or maintenance, subject to strict safety controls.
View termKraftstofftemperatur
The measured temperature of aviation fuel within tanks, lines, or engines. Critical for preventing fuel freezing at altitude and ensuring proper engine performance.
View termKraftstoffverunreinigung
Presence of water, biological growth, particulates or other foreign matter in aviation fuel that renders it unserviceable.
View termKritische Fläche
Any aircraft part essential for lift or control, including wings, control surfaces, and stabilizers, which must be clear of frost, ice, or snow for safe flight.
View termKälteeinwirkung
A condition where aircraft fuel or components become extremely cold after prolonged exposure to low outside air temperatures, increasing the risk of frost or ice formation.
View termMischungsverhältnis
The specified proportion of de-icing or anti-icing fluid mixed with water to achieve optimal performance under prevailing weather conditions.
View termMitteltank
The main fuel tank located in the central section of an aircraft’s fuselage, typically used before the wing tanks.
View termNachlauf-Eis
Ice that forms aft of treated surfaces when anti-icing fluids are overwhelmed by supercooled water running back and freezing further aft on aircraft surfaces.
View termPrist-Zusatz
A proprietary fuel system icing inhibitor (FSII) additive, often used in jet fuel to prevent the formation of ice crystals and protect against fuel line blockage at low temperatures.
View termQuerverbindung
A fuel system operation allowing fuel to be transferred or used from one tank to another to maintain aircraft balance or ensure engine supply.
View termRAT-Temperaturen
Temperatures measured by the Ram Air Temperature (RAT) probe, used for performance calculations and fluid blending ratios during de-icing or anti-icing operations.
View termRaureif
A rough, white, opaque ice that forms rapidly from supercooled water droplets freezing on aircraft surfaces, reducing aerodynamic performance.
View termReifinspektion
A mandatory check for frost, ice, or snow contamination on critical aircraft surfaces before departure to ensure safe flight operations.
View termSchneeansammlung
The build-up of snow on airport surfaces, aircraft, or equipment, affecting operations, safety, or performance.
View termSprühbalken
A component of de-icing or anti-icing equipment that distributes fluid evenly across aircraft surfaces for contaminant removal.
View termSprühverbotzone
A designated aircraft area that must not be sprayed with de-icing or anti-icing fluid due to the presence of sensitive equipment or materials.
View termstatische Erdung
Earthing connection between aircraft and fuelling equipment used to equalise electrical potential and prevent electrostatic discharge during refuelling.
View termStickstofferzeugung
The production of nitrogen gas, typically onboard, for use in fuel tank inerting systems to prevent combustion.
View termTankhydrant
Fixed valve on apron infrastructure supplying pressurised fuel to hydrant carts or hoses.
View termTankinertisierung
The process of introducing an inert gas, usually nitrogen, into an aircraft fuel tank to reduce oxygen concentration and minimize the risk of explosion or fire.
View termTriebwerkskraftstoffzufuhr
The process or system of supplying fuel from the tanks to an aircraft engine for combustion and operation.
View termTyp-I-Flüssigkeit
A heated, glycol-based de-icing fluid used primarily to remove frost, ice, and snow from aircraft surfaces before departure. Provides short-term protection.
View termTyp-II-Flüssigkeit
A glycol-based anti-icing fluid with higher viscosity than Type I, applied to aircraft surfaces to prevent ice accumulation during ground operations, providing extended protection.
View termTyp-III-Flüssigkeit
A low-viscosity anti-icing fluid designed for slower aircraft, offering both de-icing and anti-icing properties with limited holdover time.
View termTyp-IV-Flüssigkeit
A high-viscosity, anti-icing fluid used on fast, jet aircraft to provide maximum holdover time and surface protection against ice and snow during ground operations.
View termUntere Laderäume
The compartments in the lower fuselage of an aircraft, often used for cargo or, on some aircraft, additional fuel storage.
View termVerlängerte Wirksamkeitszeit
An officially authorized increase in the maximum allowable holdover time beyond standard tables, based on improved weather or de-icing conditions, to extend aircraft protection before takeoff.
View termVorstartkontrolle
A required inspection or verification immediately before departure, ensuring that aircraft critical surfaces are free of frost, ice, or snow and that all systems are ready for safe takeoff.
View termWasserpaste
A chemical indicator applied to the end of a fuel tank dipstick to detect the presence of water at the bottom of aviation fuel tanks during preflight inspections. Used to ensure fuel quality and prevent engine or fuel system contamination.
View termWirksamkeitszeit
The estimated time anti-icing or de-icing fluid will prevent formation of frost, ice, or snow on the aircraft's critical surfaces under current weather conditions.
View termZusatzpumpe
An electrically or hydraulically operated pump used to supply fuel under pressure from tanks to engines, especially during start or when main pumps are inoperative.
View termZweite Flüssigkeit
A protective de-icing or anti-icing fluid applied after first fluid, designed to prevent further accumulation of ice or snow on aircraft surfaces.
View termÜber-Flügel-Betankung
Refueling conducted from a hose and nozzle inserted into the over-wing filler port.
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