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The Government of Canada’s terminology and linguistic data bank.
natural horizon [2 records]
Record 1 - internal organization data 2001-09-05
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
- natural horizon
1, record 1, English, natural%20horizon
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- real horizon 2, record 1, English, real%20horizon
correct
- true horizon 3, record 1, English, true%20horizon
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The attitude indicator (also called the artificial horizon or the gyro horizon) provides the pilot with an artificial horizon as a means of reference when the natural horizon cannot be seen because of cloud, fog, rain or other obstructions to visibility... The natural horizon is represented by a horizon bar on the face of the instrument. 4, record 1, English, - natural%20horizon
Record number: 1, Textual support number: 2 CONT
The attitude indicator relies on the principle of gyroscopic rigidity in space--the rapidly-spinning rotor disk resists any attempt to disturb its orientation. Thus, the gyro provides a stable horizontal reference against which the pitch and roll attitudes of the aircraft can be measured. The "artificial horizon bar" on the face of the attitude indicator is mechanically coupled to the gyro inside, so it remains parallel to the natural horizon. The instrument's little "symbolic airplane" is fixed to the instrument case, however, so it follows the roll and pitch movements of the real airplane. Consequently, the relationship of the horizon bar to the symbolic airplane is the same as the relationship between the natural horizon and the real airplane. 5, record 1, English, - natural%20horizon
Record number: 1, Textual support number: 3 CONT
The attitude indicator and heading indicator are based on a gyro's rigidity in space. Because a gyro resists being tipped over, it can provide a stable reference to the real horizon or to a specific direction. 2, record 1, English, - natural%20horizon
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
- horizon naturel
1, record 1, French, horizon%20naturel
correct, see observation, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- horizon terrestre 2, record 1, French, horizon%20terrestre
correct, see observation, masculine noun
- horizon vrai 3, record 1, French, horizon%20vrai
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Horizon artificiel. Cet instrument gyroscopique indique au pilote la position des ailes et du nez de l'avion par rapport à l'horizon terrestre lorsque l'horizon naturel n'est pas visible en raison des nuages, du brouillard, de la pluie. 2, record 1, French, - horizon%20naturel
Record number: 1, Textual support number: 2 CONT
En cas de perte des références extérieures, (rentrer dans un nuage, forte dégradation de la visibilité par brume ou pluie...), le pilote ne disposera plus que d'une vision réduite de son environnement par l'intermédiaire de l'horizon artificiel. Cet instrument sera - au même titre que l'horizon naturel en pilotage à vue - sa référence principale. 4, record 1, French, - horizon%20naturel
Record number: 1, Textual support number: 3 CONT
L'horizon artificiel dont se servent les pilotes d'avion est produit par un gyroscope en mouvement. Cet instrument est extrêmement important pour les pilotes puisqu'il leur indique la position de l'avion par rapport à l'horizon vrai. 3, record 1, French, - horizon%20naturel
Record number: 1, Textual support number: 1 OBS
Les termes «horizon terrestre» et «horizon naturel» ne sont pas de parfaits synonymes mais, en contexte de pilotage avion, on peut penser que les deux termes se confondent. 5, record 1, French, - horizon%20naturel
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1977-09-06
Record 2, English
Record 2, Subject field(s)
- Astronomy
Record 2, Main entry term, English
- apparent horizon
1, record 2, English, apparent%20horizon
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- visible horizon 1, record 2, English, visible%20horizon
correct
- local horizon 1, record 2, English, local%20horizon
correct
- geographic horizon 1, record 2, English, geographic%20horizon
correct
- topocentric horizon 1, record 2, English, topocentric%20horizon
correct
- natural horizon 1, record 2, English, natural%20horizon
correct
- sensible horizon 1, record 2, English, sensible%20horizon
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 OBS
[The apparent horizon is] The somewhat irregular boundary where the visible land or water surface of the Earth appears to meet the sky as viewed from any given point; (...) 1, record 2, English, - apparent%20horizon
Record 2, French
Record 2, Domaine(s)
- Astronomie
Record 2, Main entry term, French
- horizon visible 1, record 2, French, horizon%20visible
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 OBS
Il ne faut pas confondre l'horizon astronomique avec l'"horizon visible" (ligne suivant laquelle le ciel et la Terre semblent se joindre). 1, record 2, French, - horizon%20visible
Record 2, Spanish
Record 2, Textual support, Spanish
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