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The Government of Canada’s terminology and linguistic data bank.
UNFEATHERING [1 record]
Record 1 - internal organization data 2017-06-09
Record 1, English
Record 1, Subject field(s)
- Aircraft Propulsion Systems
Record 1, Main entry term, English
- unfeathering
1, record 1, English, unfeathering
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Unfeathering is accomplished by holding the feathering button in the OUT position for about 2s. This creates an artificial underspeed condition at the governor and causes high-pressure oil from the feathering pump to be directed to the rear of the propeller piston. As soon as the piston has moved outward a short distance, the blades will have sufficient angle to start rotation of the engine. When this occurs, the unfeathering switch can be released and the governor will assume control of the propeller. 2, record 1, English, - unfeathering
Record 1, Key term(s)
- unfeathering operation
Record 1, French
Record 1, Domaine(s)
- Propulsion des aéronefs
Record 1, Main entry term, French
- dévirage
1, record 1, French, d%C3%A9virage
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- retour de drapeau 2, record 1, French, retour%20de%20drapeau
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
L'action consistant à passer de la position «drapeau» à la position de fonctionnement normal constitue le dévirage du moteur. 3, record 1, French, - d%C3%A9virage
Record number: 1, Textual support number: 2 CONT
Le dévirage consiste à commander, par l'électro-pompe de drapeau, la diminution de pas, jusqu'au pas nul s'il y a lieu. Le dévirage peut être exécuté, soit automatiquement - et partiellement au début des séquences de mise en route, soit comme une manœuvre indépendante de toute autre. 4, record 1, French, - d%C3%A9virage
Record number: 1, Textual support number: 3 CONT
Pour assurer le retour en drapeau on utilise les circuits auxiliaires de mise en drapeau puisque le moteur, qui est arrêté, ne peut plus fournir d'énergie de servitude. 2, record 1, French, - d%C3%A9virage
Record number: 1, Textual support number: 1 OBS
Bien que l'on parle presque toujours de dévirage d'une hélice, c'est par métonymie que certains auteurs parlent de dévirage d'un moteur. 5, record 1, French, - d%C3%A9virage
Record 1, Spanish
Record 1, Textual support, Spanish
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