TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

Many spacecraft use small rockets called thrusters to move around in space. Thrusters can change the speed and direction of a spacecraft. They allow a spacecraft to steer in space, to jump to a higher orbit, or to fall back to Earth.  4, record 1, English, - thruster

Record number: 1, Textual support number: 2 CONT

The control rocket is a vernier or other rocket used to control the attitude of, or slightly change the speed of, a spacecraft.  5, record 1, English, - thruster

Record number: 1, Textual support number: 3 CONT

The propulsion subsystem featured sets of small thrusters and a main engine. The thrusters were used to perform Odyssey's attitude control and trajectory correction manoeuvres, while the main engine was used to place the spacecraft in orbit around Mars. The main engine, which used hydrazine propellant with nitrogen tetroxide as an oxidiser, produced a minimum thrust of 65. 3 kilograms of force. Each of the four thrusters used for attitude control produce a thrust of 0. 1 kilogram of force. Four 2. 3-kilogram-force thrusters were used for turning the spacecraft. In addition to miscellaneous tubing, pyro valves and filters, the propulsion subsystem also included a single gaseous helium tank used to pressurise the fuel and oxidiser tanks. The propulsion subsystem weighed 49. 7 kilograms.  4, record 1, English, - thruster

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Moteur-fusée de très petite poussée.  4, record 1, French, - micropropulseur

Record number: 1, Textual support number: 1 CONT

Des micropulseurs télécommandés développent des impulsions radiales axiales qui corrigent l'attitude ou la position du satellite sur son orbite.  2, record 1, French, - micropropulseur

Record number: 1, Textual support number: 1 OBS

On prévoit dans de nombreux satellites de petits propulseurs [...] dont les emplacements sont fixes.  5, record 1, French, - micropropulseur

Record number: 1, Textual support number: 2 OBS

Micropropulseur télécommandé.  6, record 1, French, - micropropulseur

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

Exhaust thrust deflection control. Another method of stabilisation comprises a gyroscope unit which detects deflections and converts them into electrical signals, which are injected into a computer carried on board the spacecraft. The computer compares the measurements taken from a programmed trajectory and deduces the correction instructions needed.  1, record 2, English, - gyroscope%20unit

Record number: 2, Textual support number: 1 OBS

gyro platform; gyroscopic platform: terms officially approved by the Aeronautical Terminology Standardization Committee (ATSC) - Helicopters.  8, record 2, English, - gyroscope%20unit

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

Gyro de transfert. La grande problématique du navigateur était de décoller avec un cap vrai le plus précis possible pour se garantir une navigation sans trop d'histoires. Il avait été imaginé un conservateur de cap installé dans une Renault 4L qui stationnait près du bureau de piste. Avant chaque départ en mission la 4L était utilisée pour caler la centrale gyroscopique du Mirage IV au moyen du gyro de transfert prévu à cet effet dans son coffre. Cette solution assez contraignante a été abandonnée lorsqu'il est apparu que le calage manuel de la centrale, avion aligné sur l'axe de piste, était d'une précision suffisante.  5, record 2, French, - centrale%20gyroscopique

Record number: 2, Textual support number: 1 OBS

Pluriel : des plateformes, des plates-formes.  6, record 2, French, - centrale%20gyroscopique

Record number: 2, Textual support number: 2 OBS

plateforme (sing.); plateformes (pl.) : Ces graphies, puisées des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, sont attestées dans le Petit Robert (2004).  7, record 2, French, - centrale%20gyroscopique

Record number: 2, Textual support number: 3 OBS

centrale gyroscopique; plate-forme gyroscopique : termes uniformisés par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Hélicoptères.  8, record 2, French, - centrale%20gyroscopique

Record number: 2, Textual support number: 1 PHR

Caler la centrale gyroscopique.  5, record 2, French, - centrale%20gyroscopique

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

The Attitude and Vernier Upper Module. The Vega launch vehicle is equipped with a liquid propulsion module(AVUM), which provides roll control and pitch, yaw, and axial thrust during the final phase of flight. It shall perform the following functions :-roll control;-attitude control during coasting flight and in orbit phase;-correction of axial velocity error due to solid rocket motor performance scatter;-generation of the required velocity change for orbit circularisation(as required) ;-satellite pointing;-satellite release manoeuvres;-empty stage de-orbiting.  2, record 3, English, - attitude%20and%20Vernier%20upper%20module

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

Enfin, on attend la signature du contrat de développement du petit lanceur Vega. Il s'agit d'un lanceur composé de trois étages à propergol solide, surmonté d'un module supérieur à liquide dit AVUM (Attitude and Vernier Upper Module) - permettant le contrôle d'attitude et d'orbite, la séparation des satellites et la désorbitisation - ainsi que d'une coiffe.  2, record 3, French, - module%20sup%C3%A9rieur%20Vernier%2Fcommande%20d%27orientation

Record 3,  Textual support,  Spanish