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TURBINE AIR DYNAMIQUE [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2008-11-06

English

Subject field(s)
  • Aircraft Systems
CONT

A ram air turbine (RAT) is a small turbine and connected hydraulic pump, or electrical generator used as power source for aircraft. In some early aircraft, these were permanently mounted and were the aircraft's principal electrical power source. With the exception of crop dusters, modern aircraft only use RATs for emergency use - in case of the loss of both primary and auxiliary power sources the RAT will power vital systems (flight controls, linked hydraulics and also flight-critical instrumentation). Some RATs produce only hydraulic power, that is then used to power electrical Generators.

Key term(s)
  • ram-air turbine

French

Domaine(s)
  • Circuits des aéronefs
CONT

Les groupes de secours RAT(Ram Air Turbine) des avions d’aujourd’hui génèrent l'énergie à l'aide d’une turbine à air dynamique, sortie de l'aérostructure en cas de panne. La quantité d’énergie mise à disposition par ces systèmes de secours dépend directement de la vitesse de l'avion; elle baisse avec celle-ci et passe à zéro en phase finale d’atterrissage.

OBS

turbine à air dynamique; RAT : terme et abréviation uniformisés par les Comités d’uniformisation de la terminologie aéronautique(CUTA)-Opérations aériennes et Maintenance.

Spanish

Save record 1

Record 2 2007-11-27

English

Subject field(s)
  • Aircraft Propulsion Systems
DEF

[The] ambient air rammed into an airplane through a scoop, such as an engine scoop, as the airplane moves through the air.

PHR

Ram air turbine.

French

Domaine(s)
  • Propulsion des aéronefs
DEF

Air extérieur entrant dans une ouverture ad hoc dans un engin se déplaçant à grande vitesse (généralement un avion).

OBS

air dynamique : terme uniformisé par les Comités d’uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes et Maintenance.

PHR

Turbine à air dynamique.

Spanish

Save record 2

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