TERMIUM Plus®
From: Translation Bureau
On social media
Consult the Government of Canada’s terminology data bank.
GEARED PROPELLER [2 records]
Record 1 - internal organization data 2008-10-20
Record 1, English
Record 1, Subject field(s)
- Aircraft Propulsion Systems
Record 1, Main entry term, English
- propfan
1, record 1, English, propfan
correct, see observation, officially approved
Record 1, Abbreviations, English
Record 1, Synonyms, English
- prop-fan 2, record 1, English, prop%2Dfan
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Advanced propeller for use at high Mach numbers, having 6 to 12 blades each with thin, sharp-edged lenticular profile and curved scimitar shape. 3, record 1, English, - propfan
Record number: 1, Textual support number: 1 OBS
It is often used to designate both the engine and its propeller. Some competing terms : free fan(Boeing) : unducted fan, UDF(GE) : ultra fan, advanced propeller(R-R) : ultra-high bypass, UHB(McDonnell Douglas) : ultra-bypass engine, UBE(Boeing coined this term to describe both geared propfans and gearless unducted fan). However, the term propfan coined by Hamilton Standard, a pioneer in that field, is gaining wide acceptance. 3, record 1, English, - propfan
Record number: 1, Textual support number: 2 OBS
propfan: term officially approved by the Internacional Civil Aviation Organization (ICAO). 4, record 1, English, - propfan
Record 1, French
Record 1, Domaine(s)
- Propulsion des aéronefs
Record 1, Main entry term, French
- hélice transsonique
1, record 1, French, h%C3%A9lice%20transsonique
correct, feminine noun, officially approved
Record 1, Abbreviations, French
Record 1, Synonyms, French
- hélice supercritique 2, record 1, French, h%C3%A9lice%20supercritique
feminine noun
- hélice cimeterre 2, record 1, French, h%C3%A9lice%20cimeterre
feminine noun
- propfan 3, record 1, French, propfan
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Hélice à grand nombre de pales, plus ou moins recourbées et dotées de profils spéciaux autorisant des Mach de croisière relativement élevés (0,7 à 0,8). 2, record 1, French, - h%C3%A9lice%20transsonique
Record number: 1, Textual support number: 1 OBS
Il existe des versions contrarotatives de ce genre d'hélice. 2, record 1, French, - h%C3%A9lice%20transsonique
Record number: 1, Textual support number: 2 OBS
La nouvelle école (1993) désigne ce système de propulsion sous la zone de Système THR ou propulsion THR - Turbopropulseur à hélices rapides. 4, record 1, French, - h%C3%A9lice%20transsonique
Record number: 1, Textual support number: 3 OBS
hélice transsonique : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes et par l'Organisation de l'aviation civile internationale (OACI). 5, record 1, French, - h%C3%A9lice%20transsonique
Record number: 1, Textual support number: 1 PHR
Propfan monté en queue, sur des mâts. 6, record 1, French, - h%C3%A9lice%20transsonique
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Sistemas de propulsión de aeronaves
Record 1, Main entry term, Spanish
- hélice transónica
1, record 1, Spanish, h%C3%A9lice%20trans%C3%B3nica
correct, feminine noun, officially approved
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- hélice propfan 1, record 1, Spanish, h%C3%A9lice%20propfan
correct, feminine noun, officially approved
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 OBS
hélice transónica; hélice propfan: términos aceptados oficialmente por la Organización de Aviación Civil Internacional (OACI). 2, record 1, Spanish, - h%C3%A9lice%20trans%C3%B3nica
Record 2 - internal organization data 2008-07-23
Record 2, English
Record 2, Subject field(s)
- Aircraft Propulsion Systems
Record 2, Main entry term, English
- propeller shaft
1, record 2, English, propeller%20shaft
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- engine propeller shaft 2, record 2, English, engine%20propeller%20shaft
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
The hub assembly is the supporting unit for the blades, and it provides the mounting structure by which the propeller is attached to the engine propeller shaft. 2, record 2, English, - propeller%20shaft
Record number: 2, Textual support number: 1 OBS
The propeller shaft is a splined shaft, either an integral part of the engine or an auxiliary shaft, geared to the engine crankshaft and used to transmit the brake horsepower, developed by the engine, to the propeller where it is transformed into thrust horsepower. 3, record 2, English, - propeller%20shaft
Record number: 2, Textual support number: 1 PHR
Hollow propeller shaft. 4, record 2, English, - propeller%20shaft
Record 2, Key term(s)
- prop shaft
Record 2, French
Record 2, Domaine(s)
- Propulsion des aéronefs
Record 2, Main entry term, French
- arbre porte-hélice
1, record 2, French, arbre%20porte%2Dh%C3%A9lice
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- arbre hélice 2, record 2, French, arbre%20h%C3%A9lice
correct, masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Le moyeu est fixé et centré sur l'arbre porte-hélice par l'intermédiaire du cône arrière, du cône avant et de l'écrou de blocage freiné par l'écrou intermédiaire [...] 3, record 2, French, - arbre%20porte%2Dh%C3%A9lice
Record number: 2, Textual support number: 1 OBS
L'hélice peut être entraînée directement par le moteur et, dans ce cas, elle est fixée sur un axe solidaire de l'extrémité du vilebrequin. Elle peut être aussi entraînée par l'intermédiaire d'un réducteur et tourne alors à une vitesse inférieure à celle du vilebrequin. 4, record 2, French, - arbre%20porte%2Dh%C3%A9lice
Record number: 2, Textual support number: 1 PHR
Arbre porte-hélice creux. 5, record 2, French, - arbre%20porte%2Dh%C3%A9lice
Record 2, Spanish
Record 2, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2026
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
GCtranslate (available on the Government of Canada network only)
Use this artificial intelligence prototype to translate Government of Canada content up to and including Protected B. Available to employees of selected departments and agencies only.
Writing tools
The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies
Access Translation Bureau glossaries and vocabularies.
- Date Modified: