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TAUX PRECESSION [5 records]
Record 1 - internal organization data 2015-03-04
Record 1, English
Record 1, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 1, Main entry term, English
- turn indicator
1, record 1, English, turn%20indicator
correct, NATO, standardized
Record 1, Abbreviations, English
Record 1, Synonyms, English
- turn needle 2, record 1, English, turn%20needle
correct
- rate-of-turn indicator 3, record 1, English, rate%2Dof%2Dturn%20indicator
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
An instrument for indicating the rate of turn on an aircraft about the vertical axis. 4, record 1, English, - turn%20indicator
Record number: 1, Textual support number: 1 CONT
Turn and slip indicator. The instrument is comprised of two components. -The turn needle is an electrically driven gyroscope which indicates the rate of turn. The marks ... on either side of center represent a bank angle of 15 degrees. This is termed a standard rate turn. The rate of turn is 3 degrees per second. It takes 2 minutes to turn 360 degrees. -The glass level containing the black ball is called the inclinometer. 5, record 1, English, - turn%20indicator
Record number: 1, Textual support number: 1 OBS
[The] turn indicator ... [is] almost always combined with slip/skid. 6, record 1, English, - turn%20indicator
Record number: 1, Textual support number: 2 OBS
turn indicator: term and definition standardized by NATO. 7, record 1, English, - turn%20indicator
Record 1, French
Record 1, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 1, Main entry term, French
- indicateur de virage
1, record 1, French, indicateur%20de%20virage
correct, masculine noun, NATO, standardized
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Dispositif gyroscopique à aiguille, destiné à indiquer l’inclinaison prise par un aéronef lorsqu’il vire. 2, record 1, French, - indicateur%20de%20virage
Record number: 1, Textual support number: 1 CONT
Indicateur de virage et d’inclinaison latérale. [...] Le principe de base gouvernant le fonctionnement de l'indicateur de virage est la précession gyroscopique. Le rotor est monté sur un cardan. Lorsque l'avion effectue un virage à droite ou à gauche, le rotor «précesse» autour de son axe de rotation et fait rouler le cardan. À son tour, le mouvement rotatoire du cardan fait bouger l'aiguille sur le devant de l'instrument. Un ressort renvoie le gyroscope au neutre lorsque l'avion cesse de virer. L'indicateur de virage indique le «taux» de virage et non «l'amplitude». Le taux standard, ou virage au taux 1, est égal à 3 degrés par seconde ou 360 degrés en deux minutes. 3, record 1, French, - indicateur%20de%20virage
Record number: 1, Textual support number: 1 OBS
indicateur de virage : terme et définition normalisés par l’OTAN. 4, record 1, French, - indicateur%20de%20virage
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Instrumentos y equipo de vuelo (Industria aeronáutica)
- Pilotaje y navegación aérea
- Instrumentos de navegación
Record 1, Main entry term, Spanish
- indicador de giro
1, record 1, Spanish, indicador%20de%20giro
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- indicador de viraje 2, record 1, Spanish, indicador%20de%20viraje
correct, masculine noun
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Instrumento que muestra el ritmo y la dirección de giro de un avión. 1, record 1, Spanish, - indicador%20de%20giro
Record 2 - internal organization data 2010-07-28
Record 2, English
Record 2, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 2, Main entry term, English
- turn coordinator
1, record 2, English, turn%20coordinator
correct
Record 2, Abbreviations, English
- TC 2, record 2, English, TC
correct
Record 2, Synonyms, English
- turn co-ordinator 3, record 2, English, turn%20co%2Dordinator
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
An aircraft instrument that senses roll and yaw movement about the lateral and longitudinal axis. 4, record 2, English, - turn%20coordinator
Record number: 2, Textual support number: 1 CONT
The turn coordinator is really two instruments. The gyro portion shows the aircraft's rate of turn--how fast it's changing direction. A ball in a tube called the "inclinometer" or "slip/skid indicator" shows the quality of the turn--whether the turn is "coordinated." 5, record 2, English, - turn%20coordinator
Record number: 2, Textual support number: 1 OBS
The turn coordinator is similar to the turn(-)and(-)slip indicator. It is found in more modern aircraft. The main difference is in the presentation of the turn. A miniature airplane is used to show the bank instead of a needle. 6, record 2, English, - turn%20coordinator
Record 2, French
Record 2, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 2, Main entry term, French
- coordonnateur de virage
1, record 2, French, coordonnateur%20de%20virage
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- contrôleur de virage 2, record 2, French, contr%C3%B4leur%20de%20virage
masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Plusieurs avions modernes sont équipés d’un coordonnateur de virage. Cet instrument remplace l'indicateur de virage et d’inclinaison latérale. Il fonctionne sur le même principe, mais certaines particularités de construction lui permettent de réagir non seulement au lacet mais aussi au roulis. Plutôt que de tourner autour de son axe horizontal, comme le fait l'indicateur de virage et d’inclinaison latérale, le gyroscope est incliné d’environ 35 degrés. Ainsi, lors d’un mouvement autour des axes de roulis et de lacet, la précession fait rouler légèrement le mécanisme du gyroscope. Le cardan est relié à un avion miniature sur la face de l'instrument. Le petit avion s’incline pour indiquer au pilote les taux de roulis et de lacet. [...] La bille donne les mêmes indications que celles de l'indicateur de virage et d’inclinaison latérale. 3, record 2, French, - coordonnateur%20de%20virage
Record number: 2, Textual support number: 1 OBS
coordonnateur de virage : terme d’usage obligatoire au Bureau de la traduction du Canada. 4, record 2, French, - coordonnateur%20de%20virage
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2001-11-15
Record 3, English
Record 3, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 3, Main entry term, English
- mechanical precession
1, record 3, English, mechanical%20precession
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Precession error. Frictional forces in the gyro system cause it to precess. This precession causes a creep or drift in the reading on the card, amounting approximately 3 degrees in 15 minutes. The gyro is also subject to apparent precession. Gyroscopic inertia keeps the spinning gyro fixed in space so that, relative to space, it does not move. But the earth rotating underneath it gives it an apparent motion relative to the earth. This causes an apparent drift, or precession, which varies with latitude... Precession error, both mechanical and apparent, must be corrected for at regular intervals of about 15 minutes. 1, record 3, English, - mechanical%20precession
Record 3, French
Record 3, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 3, Main entry term, French
- précession mécanique
1, record 3, French, pr%C3%A9cession%20m%C3%A9canique
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- précession instrumentale 2, record 3, French, pr%C3%A9cession%20instrumentale
correct, feminine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Erreur de précession. Les forces de friction présentes dans le système gyroscopique engendrent la précession. Cette précession occasionne un «glissement» ou une «dérive» d’environ 3 degrés dans la lecture de l’instrument et ce, à toutes les 15 minutes. Le gyroscope est aussi sujet à la précession apparente. L’inertie gyroscopique garde le gyroscope fixe dans l’espace de sorte qu’il ne bouge pas par rapport à l’espace. Cependant, la terre qui tourne en dessous du gyroscope donne à ce dernier un mouvement apparent par rapport à la terre. La rotation de la terre cause une dérive apparente, ou précession, qui varie avec la latitude [...] L’erreur de précession, à la fois mécanique et apparente, doit être corrigée à intervalles réguliers, c.-à-d. toutes les 15 minutes. 3, record 3, French, - pr%C3%A9cession%20m%C3%A9canique
Record number: 3, Textual support number: 2 CONT
Le compas gyromagnétique a une précession instrumentale Pi = - 1°/h (1 degré/heure vers la droite). 2, record 3, French, - pr%C3%A9cession%20m%C3%A9canique
Record number: 3, Textual support number: 3 CONT
Question 22 [...] Si le compas ne possède pas de dispositif de correction de taux horaire et si le gyro a une précession mécanique nulle, la valeur du cap gyro à 13h30min UTC est : A »Cgy=249°; B »Cgy=275, 5°; C »Cgy=254, 5°; D »Cgy=281°. 4, record 3, French, - pr%C3%A9cession%20m%C3%A9canique
Record number: 3, Textual support number: 1 PHR
Précession astronomique, de déplacement. 2, record 3, French, - pr%C3%A9cession%20m%C3%A9canique
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2001-09-04
Record 4, English
Record 4, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 4, Main entry term, English
- principle of precession
1, record 4, English, principle%20of%20precession
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
- gyroscopic precession principle 2, record 4, English, gyroscopic%20precession%20principle
correct
- law of precession 3, record 4, English, law%20of%20precession
correct
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
Gyroscopic Precession Principle: When a force is applied to a spinning gyro, the maximum reaction occurs 90° later in the direction of rotation. 2, record 4, English, - principle%20of%20precession
Record number: 4, Textual support number: 2 CONT
Precision Gyroscope. For demonstration of gyroscopic stabilization, gyrocompass, inertial guidance, principle of precession, etc. Dynamically-balanced, metallic rotor disc is mounted on a gimbal ring with cone bearings. Included are a plastic base with pivot cradle, and a second base with gimbal cradle. Cord included for rotating the rotor disc. With instructions. 4, record 4, English, - principle%20of%20precession
Record 4, Key term(s)
- precession law
- precession principle
Record 4, French
Record 4, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 4, Main entry term, French
- loi de précession
1, record 4, French, loi%20de%20pr%C3%A9cession
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- principe de la précession 2, record 4, French, principe%20de%20la%20pr%C3%A9cession
correct, masculine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
L'indicateur de virage est un gyromètre utilisant la loi de précession d’un gyroscope à un degré de liberté. Il indique le taux et le sens de virage. 1, record 4, French, - loi%20de%20pr%C3%A9cession
Record number: 4, Textual support number: 2 CONT
Principe de la précession. La précession est le mouvement conique, séculaire que décrit l’axe des pôles terrestre. 2, record 4, French, - loi%20de%20pr%C3%A9cession
Record 4, Key term(s)
- loi de précession d'un gyroscope
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2001-06-21
Record 5, English
Record 5, Subject field(s)
- Astrophysics and Cosmography
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 5, Main entry term, English
- rate of precession
1, record 5, English, rate%20of%20precession
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- precession rate 2, record 5, English, precession%20rate
correct
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
If the weight is increased, the rate of precession is increased. If the weight is decreased, the rate of the precession is decreased and the ellipse will broaden. The period of oscillation for undamped gyro is 113 minutes, and as the spin axis seek the meridian some means is required to suppress this oscillation so that it will come to rest in north direction. 3, record 5, English, - rate%20of%20precession
Record number: 5, Textual support number: 2 CONT
A further use of gyroscopes is found in their employment as stabilizers, as on aircraft and ships, to keep inertial guidance systems steady despite the sometimes violent motions of the vehicles. In such cases the gyroscope is made very large and given a large amount of angular momentum. The rate of precession will then be very small, since the precession is inversely proportional to the angular momentum; this small rate of precession means that the system resists angular displacements. 4, record 5, English, - rate%20of%20precession
Record number: 5, Textual support number: 1 OBS
See record "precessional motion / précession." 5, record 5, English, - rate%20of%20precession
Record 5, French
Record 5, Domaine(s)
- Astrophysique et cosmographie
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 5, Main entry term, French
- taux de précession
1, record 5, French, taux%20de%20pr%C3%A9cession
correct, masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
Le Groupe de Travail sur la Théorie de la Nutation d’une Terre non-rigide a quantifié les problèmes dans la série de nutations adoptée par l'UAI en 1980 en notant :(1) qu'il y a une différence dans le taux de précession d’environ-3. 0 millisecondes de degré par an(mas/an) entre la valeur observée par interférométrie à très longue base(VLBI) et par Tirs au Laser sur la Lune(LLR) et la valeur adoptée [...] 2, record 5, French, - taux%20de%20pr%C3%A9cession
Record number: 5, Textual support number: 1 OBS
L’usage fait donner des appellations différentes à cette composante de rotation instantanée [...] : lorsqu’elle est due à un phénomène déterministe et connu, on l’appelle précession gyroscopique; lorsqu’elle est due à un phénomène aléatoire, ou bien que l’on ne maîtrise pas, on l’appelle dérive gyroscopique. 3, record 5, French, - taux%20de%20pr%C3%A9cession
Record number: 5, Textual support number: 2 OBS
Voir la fiche «précession / precessional motion». 4, record 5, French, - taux%20de%20pr%C3%A9cession
Record 5, Spanish
Record 5, Textual support, Spanish
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