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PROPELLER EFFECTS [3 records]
Record 1 - internal organization data 2023-03-16
Record 1, English
Record 1, Subject field(s)
- Mechanical Components
- Aircraft Propulsion Systems
- Propulsion of Water-Craft
Record 1, Main entry term, English
- toroidal propeller
1, record 1, English, toroidal%20propeller
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The toroidal propeller allows a small multirotor unpiloted aircraft, or drone, to operate more quietly than current drones that use propeller forms unchanged since the beginning of aviation. [It] consists of two blades looping together so that the tip of one blade curves back into the other. This closed-form structure minimizes the drag effects of swirling air tunnels... created at the tips of blades and strengthens the overall stiffness of the propeller. These features reduce the propeller's acoustic signature. 2, record 1, English, - toroidal%20propeller
Record 1, French
Record 1, Domaine(s)
- Composants mécaniques
- Propulsion des aéronefs
- Propulsion des bateaux
Record 1, Main entry term, French
- hélice toroïdale
1, record 1, French, h%C3%A9lice%20toro%C3%AFdale
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
L'hélice toroïdale permet à un drone de fonctionner plus silencieusement que les drones possédant des hélices qui ont un profil n'ayant jamais été modifié depuis les tous débuts de l'aéronautique. [Elle] se compose de deux pales s'enroulant ensemble de sorte que l'extrémité d'une pale se recourbe dans l'autre. Cette structure de forme fermée minimise les effets de traînée des tunnels d'air tourbillonnants [...] créés au bout des pales et renforce la rigidité globale de l'hélice. Ces caractéristiques réduisent la signature acoustique de l'hélice. 2, record 1, French, - h%C3%A9lice%20toro%C3%AFdale
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2020-10-29
Record 2, English
Record 2, Subject field(s)
- River and Sea Navigation
- Hydrology and Hydrography
Record 2, Main entry term, English
- bank effect
1, record 2, English, bank%20effect
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Bank effect refers to the tendency of the stern of a ship to swing toward the near bank when operating in a river or constricted waterway. … This phenomenon depends on many parameters, such as bank shape, water depth, ship-bank distance, ship properties, ship speed and propeller action. A reliable estimation of bank effects is important for determining the limiting conditions in which a ship can safely navigate a waterway. 2, record 2, English, - bank%20effect
Record 2, French
Record 2, Domaine(s)
- Navigation fluviale et maritime
- Hydrologie et hydrographie
Record 2, Main entry term, French
- effet de berge
1, record 2, French, effet%20de%20berge
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- effet de bande 2, record 2, French, effet%20de%20bande
correct, masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
L'effet de bande désigne la tendance de la poupe d'un navire à se diriger vers la rive la plus près lorsque le navire se déplace sur une rivière ou dans une voie navigable restreinte. L'écoulement asymétrique autour du navire induit par la proximité des rives entraîne une différence de pression (principe de Bernoulli) entre le côté bâbord et le côté tribord. Par conséquent, le navire sera soumis à une force latérale principalement dirigée vers la rive la plus près, ainsi qu'à un mouvement de lacet poussant l'étrave vers le centre de la voie navigable. 2, record 2, French, - effet%20de%20berge
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 1997-08-29
Record 3, English
Record 3, Subject field(s)
- Propulsion of Water-Craft
Record 3, Main entry term, English
- propeller effects 1, record 3, English, propeller%20effects
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 OBS
propeller effects : term usually used in the plural. 2, record 3, English, - propeller%20effects
Record 3, Key term(s)
- propeller effect
Record 3, French
Record 3, Domaine(s)
- Propulsion des bateaux
Record 3, Main entry term, French
- effets des propulseurs
1, record 3, French, effets%20des%20propulseurs
see observation, masculine noun, plural
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 OBS
effets des propulseurs : pluriel d'usage. 2, record 3, French, - effets%20des%20propulseurs
Record 3, Key term(s)
- effet du propulseur
Record 3, Spanish
Record 3, Textual support, Spanish
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