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TAUX PORTANCE [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2006-05-19

English

Subject field(s)
  • Skydiving, Paragliding and Hang Gliding
DEF

The comparative distance a canopy flies forward while descending.

CONT

Glide ratio is directly related to glide path because it is a measure of how far forward we travel for every unit of vertical descent. Typical glide ratios for a paraglider are between 3 to 1 and 6 to 1. This means we travel between three feet forward for every foot of descent and six feet forward for every foot of descent depending on the design.

OBS

The terms "glide ratio" and "lift-to-drag ratio" are interchangeable. … "Glide ratio" is the preferred term for unpowered aircraft, and "lift-to-drag ratio" the preferred term for aerodynamics literature and powered flight.

OBS

["Glide ratio" is] sometimes called "glide angle". A canopy with a 3:1 glide ratio flies three feet forward for every foot of vertical descent.

OBS

… "glide ratio" is the same as "lift over drag," or "L/D."

Key term(s)
  • lift to drag ratio

French

Domaine(s)
  • Parachutisme, parapente et deltaplane
CONT

La finesse d’un aérodyne à voilure fixe est le rapport, à une vitesse donnée, entre sa force portante(portance) et sa traînée aérodynamique. Elle est égale au rapport entre la distance horizontale parcourue et la hauteur initiale, à vitesse constante et sans force de propulsion, en air calme, ou encore au rapport entre la vitesse horizontale et le taux de chute.

CONT

Une voile ayant 5 de finesse avancera de 5000 m de distance pour 1000 m de descente.

Spanish

Save record 1

Record 2 1981-12-08

English

Subject field(s)
  • Aeroindustry
CONT

Airspeed and lift increases. Reduction of thrust until energy pointer coincides with vertical speed pointer will enable required descent rate to be maintained.

French

Domaine(s)
  • Constructions aéronautiques
CONT

La vitesse de vol et la portance augmentent. En réduisant la poussée jusqu'à ce que l'aiguille taux d’énergie coïncide avec l'aiguille vitesse verticale, il sera possible de maintenir le taux de descente requis.

Spanish

Save record 2

Record 3 1981-12-08

English

Subject field(s)
  • Aeroindustry
CONT

Air speed and lift increases. Reduction of thrust until energy pointer coincides with vertical speed pointer will enable required descent rate to be maintained.

French

Domaine(s)
  • Constructions aéronautiques
CONT

La vitesse de vol et la portance augmentent. En réduisant la poussée jusqu'à l'aiguille taux d’énergie coincïde avec l'aiguille vitesse verticale, il sera possible de maintenir le taux de descente requis.

Spanish

Save record 3

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