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PROPELLER FEATHERING [8 records]
Record 1 - internal organization data 2017-10-17
Record 1, English
Record 1, Subject field(s)
- Aircraft Propulsion Systems
Record 1, Main entry term, English
- feathering
1, record 1, English, feathering
correct, officially approved
Record 1, Abbreviations, English
Record 1, Synonyms, English
- full feathering 2, record 1, English, full%20feathering
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The term feathering refers to the operation of rotating the blades of a propeller to an edge-to-the-wind position for the purpose of stopping the rotation of the propeller whose blades are thus feathered and to reduce drag. Therefore, a feathered blade is an approximate in-line-of-flight position, streamlined with the line of flight. Some, but not all, propellers can be feathered. Feathering is necessary when an engine fails or when it is desirable to shut off an engine in flight. The pressure of the air on the face and back of the feathered blade is equal, and the propeller will stop rotating. If it is not feathered when its engine stops driving it, the propeller will "windmill" and cause drag. 3, record 1, English, - feathering
Record number: 1, Textual support number: 1 OBS
feathering: term officially approved by the International Civil Aviation Organization (ICAO). 4, record 1, English, - feathering
Record 1, Key term(s)
- feathering operation
Record 1, French
Record 1, Domaine(s)
- Propulsion des aéronefs
Record 1, Main entry term, French
- mise en drapeau
1, record 1, French, mise%20en%20drapeau
correct, feminine noun, officially approved
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La mise en drapeau est assurée par le moteur de changement de calage lui-même. 2, record 1, French, - mise%20en%20drapeau
Record number: 1, Textual support number: 1 OBS
mise en drapeau : terme uniformisé par l'Organisation de l'aviation civile internationale (OACI). 3, record 1, French, - mise%20en%20drapeau
Record 1, Key term(s)
- manœuvre de drapeau
- passage en drapeau
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Sistemas de propulsión de aeronaves
Record 1, Main entry term, Spanish
- puesta en bandera
1, record 1, Spanish, puesta%20en%20bandera
correct, feminine noun, officially approved
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 OBS
puesta en bandera : término aceptado oficialmente por la Organización de Aviación Civil Internacional (OACI). 2, record 1, Spanish, - puesta%20en%20bandera
Record 2 - internal organization data 2017-06-09
Record 2, English
Record 2, Subject field(s)
- Aircraft Propulsion Systems
Record 2, Main entry term, English
- unfeathering
1, record 2, English, unfeathering
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, 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 2, English, - unfeathering
Record 2, Key term(s)
- unfeathering operation
Record 2, French
Record 2, Domaine(s)
- Propulsion des aéronefs
Record 2, Main entry term, French
- dévirage
1, record 2, French, d%C3%A9virage
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- retour de drapeau 2, record 2, French, retour%20de%20drapeau
correct, masculine noun
Record 2, Textual support, French
Record number: 2, 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 2, French, - d%C3%A9virage
Record number: 2, 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 2, French, - d%C3%A9virage
Record number: 2, 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 2, French, - d%C3%A9virage
Record number: 2, 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 2, French, - d%C3%A9virage
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2015-04-15
Record 3, English
Record 3, Subject field(s)
- Propulsion of Water-Craft
Record 3, Main entry term, English
- controllable-pitch propeller including feathering position
1, record 3, English, controllable%2Dpitch%20propeller%20including%20feathering%20position
correct, standardized
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
A screw propeller with controllable pitch of the blades in positive and negative range of pitch angle and in feathering position. 1, record 3, English, - controllable%2Dpitch%20propeller%20including%20feathering%20position
Record number: 3, Textual support number: 1 OBS
controllable-pitch propeller including feathering position : term and definition standardized by ISO. 2, record 3, English, - controllable%2Dpitch%20propeller%20including%20feathering%20position
Record 3, Key term(s)
- controllable-pitch propellor including feathering position
Record 3, French
Record 3, Domaine(s)
- Propulsion des bateaux
Record 3, Main entry term, French
- hélice à pas variable avec mise en drapeau
1, record 3, French, h%C3%A9lice%20%C3%A0%20pas%20variable%20avec%20mise%20en%20drapeau
feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2015-02-24
Record 4, English
Record 4, Subject field(s)
- Aircraft Propulsion Systems
Record 4, Main entry term, English
- feathered propeller
1, record 4, English, feathered%20propeller
correct, standardized, officially approved
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
A propeller the blades of which have been rotated so that the leading and trailing edges are nearly parallel with the aircraft flight path to stop or minimize drag and engine rotation. 2, record 4, English, - feathered%20propeller
Record number: 4, Textual support number: 1 CONT
The term "feathering" refers to the operation of rotating the blades of a propeller to an edge-to-the-wing position for the purpose of stopping the rotation of the propeller whose blades are thus feathered and to reduce drag. Therefore, a feathered blade is in an approximate in-line-of-flight position, streamlined with the line of flight. Some, but not all, propellers can be feathered. Feathering is necessary when an engine fails or when it is desirable to shut off an engine in flight. The pressure of the air on the face and back of the feathered blade is equal, and the propeller will stop rotating. If it is not feathered when its engine stops driving it, the propeller will "windmill" and cause drag. Another advantage of being able to feather a propeller is that a feathered propeller creates less resistance(drag) and disturbance to the flow of air over the wings and tail of the airplane. 3, record 4, English, - feathered%20propeller
Record number: 4, Textual support number: 1 OBS
feathered propeller: term and definition standardized by the Glossary for Pilots and Air Traffic Services Personnel Committee; term officially approved by the International Civil Aviation Organization (ICAO). 4, record 4, English, - feathered%20propeller
Record 4, French
Record 4, Domaine(s)
- Propulsion des aéronefs
Record 4, Main entry term, French
- hélice en drapeau
1, record 4, French, h%C3%A9lice%20en%20drapeau
correct, feminine noun, standardized, officially approved
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Hélice dont les pales ont été tournées de manière à ce que les bords d'attaque et de fuite soient presque parallèles à la trajectoire de vol pour réduire ou éliminer la traînée et la vitesse de rotation du moteur. 2, record 4, French, - h%C3%A9lice%20en%20drapeau
Record number: 4, Textual support number: 1 CONT
Si l'on fait pivoter les pales au-delà de la position normale de grand pas jusqu'à ce que la corde soit parallèle à la direction du vol, de façon à présenter la résistance minimale, on dit que l'hélice est en drapeau. Cette position des pales est particulièrement utile sur un multimoteur, car elle permet de réduire la traînée de l'hélice d'un moteur en panne. Elle offre aussi un moyen commode d'arrêter une hélice et de l'empêcher de tourner «en moulinet»; cela réduit le risque d'aggraver les dommages d'un moteur ayant subi un bris mécanique. 3, record 4, French, - h%C3%A9lice%20en%20drapeau
Record number: 4, Textual support number: 1 OBS
hélice en drapeau : terme et définition normalisés par le Comité sur le Glossaire à l'intention des pilotes et du personnel des services de la circulation aérienne; terme uniformisé par l'Organisation de l'aviation civile internationale (OACI). 4, record 4, French, - h%C3%A9lice%20en%20drapeau
Record 4, Spanish
Record 4, Campo(s) temático(s)
- Sistemas de propulsión de aeronaves
Record 4, Main entry term, Spanish
- hélice en bandera
1, record 4, Spanish, h%C3%A9lice%20en%20bandera
correct, feminine noun, officially approved
Record 4, Abbreviations, Spanish
Record 4, Synonyms, Spanish
- hélice bandera 2, record 4, Spanish, h%C3%A9lice%20bandera
correct, feminine noun
Record 4, Textual support, Spanish
Record number: 4, Textual support number: 1 CONT
[...] si un motor se para en el aire, el piloto orienta las palas de la hélice en su posición de mínima resistencia al aire (hélice bandera). 2, record 4, Spanish, - h%C3%A9lice%20en%20bandera
Record number: 4, Textual support number: 1 OBS
hélice en bandera: término aceptado oficialmente por la Organización de Aviación Civil Internacional (OACI). 3, record 4, Spanish, - h%C3%A9lice%20en%20bandera
Record 5 - internal organization data 2014-11-17
Record 5, English
Record 5, Subject field(s)
- Aircraft Propulsion Systems
Record 5, Main entry term, English
- windmilling
1, record 5, English, windmilling
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- autorotation 2, record 5, English, autorotation
correct
- wind-milling 3, record 5, English, wind%2Dmilling
correct
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
The property of a rotor system to maintain its angular velocity without engine power, the relative force provided by the forward component of the lift forces, acting on the rotor blades. 4, record 5, English, - windmilling
Record number: 5, Textual support number: 1 CONT
Most [constant-speed propellers]... also provide for full "feathering" of the blades in flight to prevent "autorotation" or "windmilling" of the propeller, thus reducing drag when the engine is dead. 5, record 5, English, - windmilling
Record 5, Key term(s)
- propeller windmilling
- windmilling rotation
- auto-rotation
Record 5, French
Record 5, Domaine(s)
- Propulsion des aéronefs
Record 5, Main entry term, French
- fonctionnement en moulinet
1, record 5, French, fonctionnement%20en%20moulinet
correct, masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
- fonctionnement en aéromoteur 2, record 5, French, fonctionnement%20en%20a%C3%A9romoteur
correct, masculine noun
- auto-rotation 3, record 5, French, auto%2Drotation
correct, feminine noun
- autorotation 4, record 5, French, autorotation
correct, feminine noun
Record 5, Textual support, French
Record 5, Key term(s)
- rotation en moulinet
Record 5, Spanish
Record 5, Campo(s) temático(s)
- Sistemas de propulsión de aeronaves
Record 5, Main entry term, Spanish
- autorrotación
1, record 5, Spanish, autorrotaci%C3%B3n
correct, feminine noun
Record 5, Abbreviations, Spanish
Record 5, Synonyms, Spanish
Record 5, Textual support, Spanish
Record number: 5, Textual support number: 1 DEF
Fenómeno que permite la generación de fuerza sustentadora por medio de un rotor que se mantiene girando gracias al viento relativo al que está sometido. 2, record 5, Spanish, - autorrotaci%C3%B3n
Record 6 - internal organization data 2008-02-20
Record 6, English
Record 6, Subject field(s)
- Aircraft Propulsion Systems
- Helicopters (Military)
- Special-Language Phraseology
Record 6, Main entry term, English
- feather the propeller
1, record 6, English, feather%20the%20propeller
correct, verb
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 OBS
"Feathering" a propeller means rotating the propeller blades about 90 degrees so each blade is streamlined with the wind, which gives minimum drag. 2, record 6, English, - feather%20the%20propeller
Record number: 6, Textual support number: 2 OBS
A feathering propeller can alter the pitch of the blades up to almost 90 degrees. That is, the blade pitch is changed so that they have their leading edge pointing right into the direction of flight, offering minimum resistance to the airflow. This mode allows the propeller rotation to be stopped, without adding excessive drag to the aircraft. Feather may be used to improve the performance of the aircraft after the failure of an engine, but more usually in light aircraft it is used in motor glider applications. 3, record 6, English, - feather%20the%20propeller
Record 6, French
Record 6, Domaine(s)
- Propulsion des aéronefs
- Hélicoptères (Militaire)
- Phraséologie des langues de spécialité
Record 6, Main entry term, French
- mettre l'hélice en drapeau
1, record 6, French, mettre%20l%27h%C3%A9lice%20en%20drapeau
correct, officially approved
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 CONT
Le calage des pales peut être augmenté ou diminué pour adapter l'incidence de la pale à la vitesse de vol, pour fournir plus de force à vitesse faible (en montée), ou moins de force à plus grande vitesse (en croisière). En cas de panne du moteur, les pales peuvent être orientées de manière à offrir la moindre résistance au vent et ne pas créer de traînée. On parle alors de mettre l'hélice en drapeau. Pour un pas donné, le calage angulaire du profil va en décroissant en s'éloignant du centre, car la vitesse locale augmente avec le rayon, d'où l'aspect vrillé de l'hélice. 2, record 6, French, - mettre%20l%27h%C3%A9lice%20en%20drapeau
Record number: 6, Textual support number: 1 OBS
mettre l'hélice en drapeau : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Maintenance. 3, record 6, French, - mettre%20l%27h%C3%A9lice%20en%20drapeau
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 1999-02-01
Record 7, English
Record 7, Subject field(s)
- Aircraft Propulsion Systems
Record 7, Main entry term, English
- feathering pump
1, record 7, English, feathering%20pump
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
- feather pump 2, record 7, English, feather%20pump
correct
Record 7, Textual support, English
Record number: 7, Textual support number: 1 CONT
The feather pump is mounted in the feather reservoir and provides an auxiliary source of hydraulic pressure for static ground operation of the propeller and for any feathering or unfeathering operation. During normal operation, the feather pump is not used. The pump is driven by an electric motor.... 3, record 7, English, - feathering%20pump
Record 7, French
Record 7, Domaine(s)
- Propulsion des aéronefs
Record 7, Main entry term, French
- pompe de mise en drapeau
1, record 7, French, pompe%20de%20mise%20en%20drapeau
correct, feminine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
- électropompe de mise en drapeau 2, record 7, French, %C3%A9lectropompe%20de%20mise%20en%20drapeau
correct, feminine noun
Record 7, Textual support, French
Record number: 7, Textual support number: 1 CONT
La mise en drapeau est assurée par le moteur de changement de calage lui-même. Dans le cas des hélices électriques, ce moteur est généralement survolté pendant cette phase afin de diminuer le temps de passage. Les hélices hydrauliques nécessitent un moteur électrique entraînant une pompe (pompe de mise en drapeau) pour suppléer la pompe du régulateur. On dispose d'une réserve dans le fond du réservoir d'huile du moteur. 1, record 7, French, - pompe%20de%20mise%20en%20drapeau
Record 7, Key term(s)
- électro-pompe de mise en drapeau
- pompe électrique de mise en drapeau
- pompe de drapeau
- électropompe de drapeau
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 1985-08-02
Record 8, English
Record 8, Subject field(s)
- Aircraft Propulsion Systems
Record 8, Main entry term, English
- increase-pitch line
1, record 8, English, increase%2Dpitch%20line
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
- high-pitch line 2, record 8, English, high%2Dpitch%20line
correct
- increase beta passage 1, record 8, English, increase%20beta%20passage
Record 8, Textual support, English
Record number: 8, Textual support number: 1 CONT
Similarly, the output of the pilot valve to either low or high pitch is routed through the feather valve. When the valve is positioned for feathering, the pump manifold is connected directly to the high-pitch line. This isolates the propeller lines from the rest of the control system and closes off the standby pump bypass. 2, record 8, English, - increase%2Dpitch%20line
Record number: 8, Textual support number: 2 CONT
The NTS-feather valve responds to either an NTS signal [negative torque signal] or a feather signal by porting all fluid pumped by the hydraulic pumps to increase beta (blade angle) passages. Thus a rapid rate of blade-angle change required for feathering or NTS response can be effected. 1, record 8, English, - increase%2Dpitch%20line
Record 8, French
Record 8, Domaine(s)
- Propulsion des aéronefs
Record 8, Main entry term, French
- conduit grand pas
1, record 8, French, conduit%20grand%20pas
masculine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
- canal grand pas 2, record 8, French, canal%20grand%20pas
masculine noun
Record 8, Textual support, French
Record number: 8, Textual support number: 1 CONT
[S'il y a augmentation du pas] la force centrifuge des masselottes est supérieure à celle du ressort. Le tiroir du régulateur se déplace vers le haut. Le conduit grand pas est en communication directe avec la pompe [du régulateur] alors que le conduit petit pas est en communication avec le retour à l'aspiration de la pompe. 1, record 8, French, - conduit%20grand%20pas
Record 8, Spanish
Record 8, Textual support, Spanish
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