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GAS BALLOON [20 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2017-10-12

English

Subject field(s)
  • Types of Aircraft
DEF

A round or triangular piece of material, at the very top of the envelope, attached with Velcro tapes or other means and connected to a red deflation rope which, when pulled, immediately dumps the hot air.

CONT

The panel to which the rip cord is attached is called the rip panel; it extends about one-fourth or one-fifth of the circumference of the balloon along one of its meridians. When the rip cord is pulled, this panel is torn open and all the gas in the balloon escapes rapidly.

French

Domaine(s)
  • Types d'aéronefs
DEF

Partie amovible de l'enveloppe située sur un côté ou au sommet, fixée par du velcro permettant un dégonflement rapide du ballon à l'atterrissage.

CONT

Le volet de déchirure occupe un quartier de l'enveloppe qui s'étend sur environ 1/5 à 1/4 de la circonférence. La manœuvre de la corde de déchirure provoque l'ouverture de cette bande et le gaz contenu dans l'enveloppe s'échappe alors très rapidement.

Spanish

Save record 1

Record 2 2017-02-09

English

Subject field(s)
  • Types of Aircraft
  • Weather Stations and Meteorological Instruments and Equipment
DEF

A ... balloon attached to a cable that is used to raise and lower the balloon.

CONT

Captive balloons were used for military observations in the U.S. Civil War, and now these craft can thrill passengers with unparalleled views.

OBS

In order to hold the balloon steady at a predetermined position in the sky, two methods are possible. One is to tether it by cables, and the other is to provide it with power.

OBS

A tethered balloon [may be] carrying instruments for making observations in the lower layers of the atmosphere.

OBS

Tethered balloons have been deployed from fixed locations over land and from ships.

OBS

tethered balloon: term used in Australian Civil Aviation Safety’s, Federal Aviation Administration’s, and Transports Canada’s Regulations.

OBS

In Canada, a permanently-tethered balloon system is an "aircraft" under the definition of the Aeronautics Act. Specifically, a balloon is defined as a "non-power driven lighter-than-air aircraft". Whether operating freely, under temporary tether or as a permanently-tethered unit, balloons are subject to the Canadian Aviation Regulations (CARs).

OBS

captive balloon: term used in the International Civil Aviation Organization’s and ISO’s documentation. Term opposed to "free balloon."

OBS

captive balloon: term standardized by ISO.

OBS

tethered ballon, moored balloon: Federal Aviation Administration regards any balloon which is designed for carrying persons as an aircraft, and as such it must be certificated and operated in accordance with the applicable rules for aircraft. Such a passenger carrying balloon is considered tethered when it is inflated and held to the ground, in whatever manner. A moored balloon (for which there are no prescribed airworthiness standards because passenger carrying was not intended) is essentially any lighter-than-air object operated under 14 CFR [Code of Federal Regulation] Part 101. Such a balloon must be restrained with mooring lines to hold it stationary in the intended location, and the balloon must comply with the provisions of 14 CFR Part 101.

PHR

Gas, non-spherical, spherical captive balloon.

French

Domaine(s)
  • Types d'aéronefs
  • Stations, instruments et équipements météorologiques
DEF

Ballon [...] relié par un câble à un appareillage qui le monte ou le descend.

CONT

Les ballons captifs furent [au] XIXe siècle des attractions recherchées; par exemple le ballon géant de Giffard relié à un treuil à vapeur enlevait 50 voyageurs à la fois jusqu'à 500 m de haut.

CONT

En 1939, la France restait le seul belligérant à mettre en œuvre des compagnies de ballons. Elle dut très rapidement les retirer du front en raison des pertes qu'ils subirent [...] Les captifs furent désormais, dans toutes les aviations militaires, employés comme ballons de protection destinés à empêcher, grâce à un quadrillage de câbles d'acier, l'approche des avions ennemis à basse altitude.

OBS

Le ballon captif peut être équipé d'instruments pour faire des observations dans les basses couches de l'atmosphère. Il peut aussi servir à la surveillance aérienne, à l'observation des paysages (tourisme aérien), à l'étude du couvert végétal en forêt, à la photographie aérienne de basse altitude, au tournage de films, etc.

OBS

ballon captif : terme normalisé par l'ISO.

Spanish

Campo(s) temático(s)
  • Tipos de aeronaves
  • Estaciones, instrumentos y equipos meteorológicos
DEF

Globo amarrado que lleva instrumentos para observaciones en la cap baja de la atmósfera; mediante cables y una cabría se puede subir o bajar el globo.

Save record 2

Record 3 2012-01-26

English

Subject field(s)
  • Closing Devices and Nozzles (Mechanical Components)
OBS

The gas valve is used to discharge gas from the balloon and is located at the extreme top where the head of gas is the greatest.

French

Domaine(s)
  • Obturateurs et buses (Composants mécaniques)
CONT

La soupape de gaz (qui sert à laisser échapper à la demande le gaz de l'enveloppe) se situe à l'extrémité supérieure de l'aérostat, là où la différence de pression entre le gaz contenu dans l'enveloppe et l'air extérieur est maximale.

OBS

Montgolfière.

Spanish

Save record 3

Record 4 2010-05-14

English

Subject field(s)
  • Weather Stations and Meteorological Instruments and Equipment
DEF

An inflatable sphere released at apogee from a sounding rocket.

CONT

robin sphere. ... The sphere is inflated by evaporation of a contained liquid on release. A corner reflector is ejected as the sphere inflates, permitting track during descent by a precision radar.

CONT

The PWN-12A is another sounding rocket using ... a dart with a ROBIN (Rocket Balloon Instrument) Inflatable Falling Sphere payload. At an apogee of about 115 km (70 miles), the dart releases a ... metalized mylar balloon ... While it is slowly descending back to earth, the balloon is tracked by a high-precision radar ... on the ground. Minimum tracking altitude is about 30 km (18 miles), where the ambient pressure will cause the balloon to collapse. Using the balloon’s known mass and volume, the radar track can be used to calculate atmospheric data like wind speed/direction and air density.

CONT

The other type of meteorological payload that can be used on a meteorological rocket consists of a falling ROBIN sphere that is used when probing the atmosphere to over 100 km altitude. These altitudes are above the normal operating levels for the thermistors aboard the rocketsonde.... This ROBIN sphere is a spherical shaped balloon constructed of a thin(0. 0001 mm thick) radar-reflective mylar material that is inflated with a small charge of inert gas to a known mass and volume. The dart containing the sphere typically reaches an altitude of 115 km where the sphere is deployed and inflated. When the sphere is inflated to super-pressure of approximately 10-12 mb, the sphere will reach a 1 meter(3. 3. ft) diameter. When the balloon descends to an altitude of approximately 30 km, the air pressure outside the sphere will become greater than that inside, causing the sphere to collapse.

Key term(s)
  • rocket-balloon instrument
  • falling sphere

French

Domaine(s)
  • Stations, instruments et équipements météorologiques
OBS

catasphère : Dispositif gonflé après avoir été éjecté d'une fusée à haute altitude; ses mouvements sont suivis au cours de sa chute pour obtenir des mesures de la densité de l'air et des vents en altitude.

Spanish

Campo(s) temático(s)
  • Estaciones, instrumentos y equipos meteorológicos
OBS

esfera en caída libre: Dispositivo que se infla después de ser expulsado de un cohete en la atmósfera superior, obteniéndose medidas de la densidad y de los vientos en las capas superiores al seguir sus movimientos durante su caída libre hacia la Tierra.

Key term(s)
  • esfera en caída libre
Save record 4

Record 5 2010-03-11

English

Subject field(s)
  • Types of Aircraft
  • Weather Stations and Meteorological Instruments and Equipment
  • Range Measurements (Telecommunications)
DEF

A balloon which can be made to ascend by the use of ballast and to descend by the release of gas but which cannot be guided in flight.

CONT

Balloons can be captive, free-floating, or powered. ... A free-floating balloon travels wherever it is blown by the wind. The balloon pilot can control the vertical movement of a piloted, free-floating balloon but cannot steer it. However, the pilot can control the course of a balloon flight to some degree by rising or descending into a layer of wind that is blowing in the desired direction.

CONT

... a weather balloon is a helium-inflated balloon that is launched several times a day and carries instruments that take critical readings ... temperature, dew point and relative humidity, wind speed and direction in the atmosphere. The balloon can be tethered to the ground, or it can be a free-flying balloon.

OBS

free balloon: term standardized by ISO.

Key term(s)
  • free flying balloon
  • free floating balloon

French

Domaine(s)
  • Types d'aéronefs
  • Stations, instruments et équipements météorologiques
  • Mesures à distance (Télécommunications)
CONT

Le ballon libre. [...] En montant, le ballon traverse des couches atmosphériques de masse volumique décroissante; la force ascensionnelle diminue, et il finit par atteindre une position d'équilibre; pour continuer à monter, il faut alléger le ballon: l'aéronaute jette alors du lest. S'il veut descendre, il laisse échapper du gaz en ouvrant la soupape.

CONT

La montgolfière a été le premier moyen de transport inventé par l'homme pour se déplacer dans les airs. [...] Le ballon libre, appelé alors «globe aérostatique» ne trouvait guère d'utilité, car il se contentait de dériver au gré du vent. C'est donc à diriger les ballons, c'est-à-dire les conduire, que l'on va travailler, mais il faudra un siècle pour y parvenir.

CONT

radiosondage [...] L'ensemble de l'équipage est transporté dans l'atmosphère par un ballon libre gonflé à l'hydrogène ou à l'hélium avec une vitesse ascensionnelle voisine de cinq mètres par seconde.

CONT

En 1850, deux Français, Barral et Bixio, quittent le sol en ballon libre [...] et s'élèvent à l'altitude de 7 050 mètres.

OBS

ballon libre : terme normalisé par l'ISO.

Key term(s)
  • montgolfière libre

Spanish

Campo(s) temático(s)
  • Tipos de aeronaves
  • Estaciones, instrumentos y equipos meteorológicos
  • Medidas de distancia (Telecomunicaciones)
Save record 5

Record 6 2007-09-21

English

Subject field(s)
  • Forestry Operations
  • Transport of Wood
CONT

Balloon extraction systems. These are cable systems that use balloons filled with a lighter-than-air gas(usually helium) to provide the lifting force that fully suspends the load of logs during extraction. Experience with balloon logging suggests that it is only feasible for clear-felling operations... Balloon logging also requires cutting units that are large enough to cover the high fixed costs associated with installing the balloon system at a landing.

French

Domaine(s)
  • Exploitation forestière
  • Transport du bois
CONT

Systèmes de débardage par ballon. Ce sont des systèmes de débardage par câble, où des ballons remplis d'un gaz plus léger que l'air (d'ordinaire de l'hélium) fournissent la force portante permettant de soulever totalement du sol la charge de billes pendant le débardage [...] L'expérience acquise dans ce domaine semble indiquer que le débardage par ballon ne convient qu'aux opérations de coupe rase [...]

Spanish

Save record 6

Record 7 2007-03-11

English

Subject field(s)
  • Spacecraft
CONT

1960: Echo 1, first communications balloon satellite, is launched.

OBS

Echo 1, a spherical balloon with a metalized skin, was launched by NASA on 12th August 1960. Once in orbit, the balloon was inflated until it reached its intended diameter of 30 metres and it was then used as a reflector to bounce radio signals across the oceans. Echo was simply a radio mirror in the sky, and its efficiency decreased as the gas which inflated the balloon gradually escaped and it lost its shape.

French

Domaine(s)
  • Engins spatiaux

Spanish

Save record 7

Record 8 2005-05-16

English

Subject field(s)
  • Atmospheric Physics
CONT

The top of the inversion layer is where the air reaches its highest temperature. The air below that level cannot ascend. (Because each parcel of air below has a cooler temperature, it is therefore denser, and gravity keeps it trapped in place.)

CONT

Warm air has formed a layer on top of cooler surface air. This layer is called the temperature inversion. This means that temperatures actually rise as we measure farther up into the air. Little or no mixing occurs and concentrations of atmospheric particulate pollution and vapors are trapped below the level where temperatures again decrease with altitude. This point is referred to as the top of the inversion. Inversions can occur at the surface or aloft in the atmosphere.

CONT

... a hot-air or gas balloon attempting to descend through a subsidence inversion will find, first, a possible bump or hesitancy of the balloon to "bust" through the top of the inversion. Once through the top of the inversion, the balloon may require much more lift than was required above the inversion top to maintain the same rate of descent.

French

Domaine(s)
  • Physique de l'atmosphère
CONT

Stratopause [signifie le] sommet de la couche d'inversion dans la stratosphère supérieure, situé vers 50 à 55 km [...]

CONT

La couche d'inversion faisait environ 600 ou 700 mètres de haut. Nous décollions [en montgolfière] des environ d'Eugénie les bains, sur un plateau. [...] La visibilité horizontale était cependant limitée du fait de l'inversion. Nous décidons donc d'atteindre le sommet de l'inversion.

OBS

couche d'inversion : Couche de l'atmosphère dans laquelle la température augmente ou demeure constante avec l'altitude.

Spanish

Save record 8

Record 9 2005-03-18

English

Subject field(s)
  • Aerodynamics and Theory of Gases
  • Weather Stations and Meteorological Instruments and Equipment
DEF

The buoyancy of the volume... of gas in a balloon...

OBS

Total lift ... is equal to the free lift plus the weight of the balloon and the attached equipment.

French

Domaine(s)
  • Théorie des gaz et aérodynamique
  • Stations, instruments et équipements météorologiques
DEF

[...] force ascensionnelle totale d'un ballon de volume [...] donnée par la poussée totale du gaz qu'il contient [...]

Spanish

Campo(s) temático(s)
  • Aerodinámica y teoría de los gases
  • Estaciones, instrumentos y equipos meteorológicos
DEF

Fuerza ascensional del volumen [...] de gas contenido en un globo [...]

Save record 9

Record 10 2002-12-17

English

Subject field(s)
  • Spacecraft
  • Space Centres
CONT

Agencies working for NASA use this term for a lighter-than-air aircraft designed to explore the planets. An aerobot is a helium-filled balloon fitted with heaters that are powered by solar cells. During the day, solar energy will heat the helium and give it extra buoyancy; at night, the balloon will drop to lower altitudes or even touch the ground. A limitation of the design is that its movements cannot be fully controlled, though it may have some ability to dictate its altitude, perhaps through dropping ballast, releasing gas or managing its temperature. A big advantage of this design is that it doesn’t need fuel, which is expensive to transport and which runs out all too soon. Unlike satellites, aerobots fly in the atmosphere, so allowing experiments to be carried out on its chemistry. They can also view and record the ground from much lower altitudes than is possible with satellites. NASA plans to send a device of this sort to Mars in 2003, and possibly later to Titan, Venus and Jupiter.

French

Domaine(s)
  • Engins spatiaux
  • Centres spatiaux
DEF

Aérostat robotique de petite dimension destiné à l'exploration planétaire.

CONT

La mission prévoit d'envoyer un aérobot sur Mars pour étudier la présence d'eau et de vie. Cette déclaration de mission a deux objectifs distincts : l'un technologique : démontrer la réussite du déploiement d'un ballon solaire sur Mars, l'autre scientifique : faire fonctionner la charge utile qui recherchera de l'eau et de la vie sur la planète rouge.

Spanish

Save record 10

Record 11 2001-02-06

English

Subject field(s)
  • Heat (Physics)
DEF

The act or process of expanding or the fact of being expanded.

CONT

Heat caused the expansion of the gas in the balloon.

French

Domaine(s)
  • Chaleur (Physique)
DEF

Augmentation de volume (d'un corps) sous l'action de la chaleur, sans changement de nature de ce corps.

Spanish

Campo(s) temático(s)
  • Calor (Física)
DEF

Aumento de volumen debido a un incremento de temperatura.

Save record 11

Record 12 1999-11-23

English

Subject field(s)
  • Types of Aircraft
DEF

The fabric part of a balloon, which contains either gas or hot air.

CONT

[The envelope] is made of gores of specially woven and proof-stressed synthetic material.

French

Domaine(s)
  • Types d'aéronefs
DEF

[Partie d'une montgolfière] qui renferme l'air chaud.

CONT

L'enveloppe traitée pour prévenir tout risque d'incendie est en nylon. D'une couronne au sommet, partent des sangles et des câbles qui s'attachent aux quatre coins d'un cadre de charge métallique sur lequel se trouve le brûleur.

Spanish

Save record 12

Record 13 1998-02-26

English

Subject field(s)
  • Food Industries
  • Breadmaking
CONT

The character of the dough must be such that it is able to hold the gas like a balloon, as otherwise there would be no rising or expansion of the dough.

French

Domaine(s)
  • Industrie de l'alimentation
  • Boulangerie
CONT

(...) la pousse est la traduction imagée de la fermentation. C'est tout au long de la planification l'expression visuelle d'une activité qui se traduit par un développement croissant et continu de la pâte. On peut donc parler de la pousse, du début de la fermentation jusqu'à la mise au four.

DEF

(...) gonflement de la pâte lors de la fermentation.

Spanish

Save record 13

Record 14 1993-01-30

English

Subject field(s)
  • Types of Aircraft
OBS

Normally a gas blower, used to inflate the balloon with cold air before starting the burner.

French

Domaine(s)
  • Types d'aéronefs

Spanish

Save record 14

Record 15 1993-01-30

English

Subject field(s)
  • Types of Aircraft
DEF

The sleeve on a gas balloon used to feed gas into the envelope.

French

Domaine(s)
  • Types d'aéronefs

Spanish

Save record 15

Record 16 1993-01-26

English

Subject field(s)
  • Types of Aircraft
OBS

Surrounding the exterior of a gas balloon. None is needed on modern hot air balloon, because the main flight loads are carried by the envelope.

French

Domaine(s)
  • Types d'aéronefs

Spanish

Save record 16

Record 17 1993-01-26

English

Subject field(s)
  • Types of Aircraft
DEF

Rope attached to the valve at the top of the gas balloon.

French

Domaine(s)
  • Types d'aéronefs

Spanish

Save record 17

Record 18 1993-01-26

English

Subject field(s)
  • Aeroindustry
DEF

On a gas balloon, a metal circular frame on which is suspended the car or basket and above which is attached the envelope.

French

Domaine(s)
  • Constructions aéronautiques

Spanish

Save record 18

Record 19 1976-06-19

English

Subject field(s)
  • Aeroindustry
DEF

A kite balloon containing a compartment into which air is forced in order to maintain the shape of the balloon, when it is not full of gas

French

Domaine(s)
  • Constructions aéronautiques
DEF

Ballon cerf-volant comportant du compartiment où l'on peut envoyer de l'air en vue de conserver la forme du ballon quand il n'est pas rempli de gaz.

Spanish

Save record 19

Record 20 1976-06-19

English

Subject field(s)
  • Air Transport
  • Aeroindustry
DEF

(AGARD) A kite balloon fitted with rubber cords or other device to control its shape when not full of gas.

French

Domaine(s)
  • Transport aérien
  • Constructions aéronautiques
DEF

(AGARD) Ballon cerf-volant équipé de cordages de caoutchouc ou d'autres dispositifs, destinés à contrôler sa forme, quand il n'est pas plein de gaz.

Spanish

Save record 20

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