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IMPACT LANDING [13 records]

Record 1 2025-01-06

English

Subject field(s)
  • Sports Equipment and Accessories
  • Gymnastics and Trampoline
CONT

Landing mats. These mats are thin and soft, usually white or red, to distinguish them from the other mats and floor exercise area. They are used on the floor exercise to lessen the "sting, "or impact, of tumbling run landings and for dismounts on the beam or floor.

French

Domaine(s)
  • Équipement et accessoires de sport
  • Gymnastique et trampoline
OBS

tapis de chute : équivalent fourni par le Centre national des sports et de la récréation.

Spanish

Campo(s) temático(s)
  • Equipo y accesorios deportivos
  • Gimnasia y acrobacias sobre cama elástica
OBS

colchoneta: término de taekwondo.

OBS

colchoneta de caída; colchoneta: términos de gimnasia.

Save record 1

Record 2 2011-05-17

English

Subject field(s)
  • Aircraft Maneuvers
  • Aircraft Piloting and Navigation
CONT

... one of the ways to achieve a smooth touchdown is to come over the runway at a higher speed and float for some distance before letting the landing gear touch down on the runway. This reduces the G force on impact.

French

Domaine(s)
  • Manœuvres d'aéronefs
  • Pilotage et navigation aérienne
CONT

En arrivant à destination, après un toucher des roues en douceur, le frein droit gelé a fait éclater le pneu, et notre pilote infortuné s'est retrouvé une deuxième fois dans un banc de neige.

Spanish

Save record 2

Record 3 2006-05-19

English

Subject field(s)
  • Landing Gear (Aeroindustry)
CONT

It was also his opinion that the damage sustained to the right landing gear and brace strut was due to impact forces sustained during the collision with the fence.

French

Domaine(s)
  • Atterrisseur (Constructions aéronautiques)
OBS

Train d'atterrissage.

OBS

contrefiche : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2004).

Spanish

Save record 3

Record 4 2006-03-01

English

Subject field(s)
  • Aeronautical Engineering and Maintenance
CONT

Dynamic tests are specifically concerned with landing gear performance and CEAT has four specialized machines for this purpose. The landing gear is attached to an adjustable ’load’ platform running in vertical guides. Landing impact is simulated by dropping this assembly at a controlled speed on to a rotating drum which provides the effect of movement over the ground. The largest of these four machines, developed and built at CEAT, permits dynamic tests to be carried out on the main landing gear of aircraft with a landing weight in excess of 120 tonnes.

French

Domaine(s)
  • Aérotechnique et maintenance
CONT

L'atterrisseur est fixé sur une plate-forme de masse réglable et guidée verticalement, l'impact étant obtenu par chute à vitesse constante de l'ensemble sur un volant, qui simule la vitesse longitudinale.

OBS

Pluriel : des plateformes, des plates-formes.

OBS

plateforme (sing.); plateformes (pl.) : Ces graphies, puisées des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, sont attestées dans le Petit Robert (2004).

Spanish

Save record 4

Record 5 2003-07-09

English

Subject field(s)
  • Aircraft Piloting and Navigation
CONT

The investigation is concentrating on the following areas : all recording devices on the aircraft, including the stoppage of the cockpit voice recorder after the initial impact; the performance and serviceability of all aircraft systems and structures; the aircraft's performance, particularly during the attempted go-around; pilot training and the pilots’ actions during the approach and landing;...

Key term(s)
  • attempted go around

French

Domaine(s)
  • Pilotage et navigation aérienne
CONT

L'enquête se penchera sur les points suivants : tous les enregistreurs de l'avion, y compris l'arrêt du CVR (enregistreur de la parole dans le poste de pilotage) après le premier impact; la performance et l'état de fonctionnement des systèmes et des structures de l'avion; les performances de l'avion, surtout pendant la tentative de remise des gaz; [...]

Spanish

Save record 5

Record 6 2003-02-27

English

Subject field(s)
  • Spacecraft
CONT

From its close orbit above the tiny nucleus, Rosetta will be able to send back the most detailed images and information ever obtained of a comet. When a suitable landing site has been chosen, about a month after global mapping starts, the orbiter will release a 100 kg lander onto the comet's solid surface. Touchdown must be quite slow-less than one metre per second-to allow for the almost negligible gravitational pull of the tiny nucleus. In order to ensure that the lander does not bounce and disappear into space, an anchoring harpoon will be fired into the surface immediately on impact.

CONT

Penetrators as tools for exploring extraterrestrial solid surfaces have been developed for a couple of space missions to Mars, the Moon, comets, and the icy satellites of the giant planets. They are particularly useful to characterize the strength properties and the layering of planetary nearsurface layers. Being currently engaged with the development of an instrumented "anchoring harpoon" for the lander of ESA’s comet mission Rosetta, we propose similar devices for application aboard future Mars lander missions.

French

Domaine(s)
  • Engins spatiaux
CONT

Le premier module, baptisé LAL [Sigle de Long-Term Automatic Lander. En français, Sonde Automatique de Longue Durée.], était conçu pour s'ancrer dans le sol grâce à une sorte de harpon d'ancrage, appelé Razrez par les soviétiques.

Spanish

Save record 6

Record 7 2003-01-14

English

Subject field(s)
  • Launchers (Astronautics)
CONT

The application of airbags to spacecraft landing systems has been limited in the past. This can be explained by the complexity of the impact behaviour of the airbag system. Accurate analytical prediction of the inner pressure, gas outflow, contact forces, and airbag deflation is only possible with high performance computers and advanced analytical software which have become available only recently.

Key term(s)
  • air-bag
  • air bag

French

Domaine(s)
  • Lanceurs (Astronautique)
CONT

L'utilisation de coussins gonflables dans les systèmes d'atterrissage pour véhicules spatiaux a été limitée dans le passé. Cela peut s'expliquer par la complexité du comportement d'un tel système lors de l'impact. Pour pouvoir faire une prévision analytique précise de la pression interne, des écoulements de gaz, des forces de contact et du dégonflement du coussin, il faut faire appel à des calculateurs à hautes performances et à des logiciels d'analyse de pointe, qui ne sont disponibles que depuis peu.

Spanish

Save record 7

Record 8 2002-11-13

English

Subject field(s)
  • Spacecraft
CONT

In addition to environmental conditions during the operations on the surface of Mars the MIDD will have to be able to sustain the loads which occur prior to deployment from the lander. Since recent and currently studied designs for Mars landers in many cases use a "semi-hard" landing technique, the shock incurred during impact on the surface becomes the driver for sizing and qualification of components rather than the launch loads or the quasistatic loads during entry into the martian atmosphere. The MARS PATHFINDER lander, being the most prominent example of a semi-hard lander since it is the only one thus far having been built and flown, experienced an actual impact velocity of 18 m/s and a maximum deceleration(first bounce) of around 18 g, both values being lower than the hardware had been designed for.

Key term(s)
  • semi hard lander

French

Domaine(s)
  • Engins spatiaux
OBS

module d'atterrissage : Le module d'atterrissage de la mission Viking mesurait 3 mètres de haut, pour une masse d'une demi tonne. Il emportait un total de 15 expériences scientifiques. Ses principaux objectifs étaient l'étude du sol martien, des vents et de l'atmosphère ainsi que la recherche d'éventuelles formes de vie.

Spanish

Save record 8

Record 9 2001-03-13

English

Subject field(s)
  • Landing Gear (Aeroindustry)
  • Spacecraft
CONT

The landing gear struts are explosively extended and provide lunar surface landing impact attenuation. The main struts are filled with crushable aluminium honeycomb for absorbing compression loads. Footpads 37 inches(0. 95 m) in diameter at the end of each landing gear provide vehicle support on the lunar surface.

French

Domaine(s)
  • Atterrisseur (Constructions aéronautiques)
  • Engins spatiaux

Spanish

Save record 9

Record 10 1987-07-17

English

Subject field(s)
  • Skiing and Snowboarding
OBS

Ski jumping terms.

French

Domaine(s)
  • Ski et surf des neiges
OBS

Termes de saut à ski.

Spanish

Save record 10

Record 11 1986-10-02

English

Subject field(s)
  • Landing Gear (Aeroindustry)
CONT

The single leaf cantilever spring steel type of main landing gear is used extensively on Cessna airplanes. The gear consists of a single strap of Chrome Vanadium Steel bent to form the shape of the complete undercarriage structure. It is attached to the fuselage in a cradle bulkhead by bolts. It is capable of storing energy in initial impact, thereby producing quite low load factors. Low maintenance, simplicity and long service life characterize this gear type.

French

Domaine(s)
  • Atterrisseur (Constructions aéronautiques)

Spanish

Save record 11

Record 12 1983-08-23

English

Subject field(s)
  • Spacecraft
OBS

after landing, the bug would stand twenty feet tall upon its four straddled legs. The legs would be rugged enough to survive an impact.

French

Domaine(s)
  • Engins spatiaux
OBS

la partie inférieure est munie de quatre pieds télescopiques avec amortisseurs pour assurer l'alunissage en douceur.

Spanish

Save record 12

Record 13 1982-11-15

English

Subject field(s)
  • Aeroindustry
CONT

The very real limitation which ILS sets on runway handling capacity has not really had the anticipated impact. The planned separation of landing aircraft has been increased to guard against dangerous aerodynamic disturbances caused by wake vortex turbulence from the preceding aircraft.

French

Domaine(s)
  • Constructions aéronautiques
CONT

La limitation très réelle apportée à la capacité d'accueil des pistes par l'ILS n'a pas eu, au cours des dernières années, les répercussions que l'on pouvait craindre. Les intervalles d'atterrissage des avions ont été augmentés pour éliminer le danger provoqué par les turbulences de sillage de l'avion précédent (...)

Key term(s)
  • capacité d'accueil de piste

Spanish

Save record 13

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