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Terms, abbreviations and pilot slang

Paragliding glossary

From your first thermal to flight computers. Explore essential terms, abbreviations and pilot slang, with related concepts and further reading.

Showing 100 of 100 terms

Equipment

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Brakes

The control lines and handles acting on the wing’s trailing edge.

brake controls

Carabiner

A connector commonly used to attach the paraglider’s risers to the harness.

karabiner

Cockpit

An instrument platform or holder positioned in front of the pilot.

Concertina bag

A packing bag in which the wing is folded so the cells stack neatly on top of each other.

EN certification

The classification of paraglider wings into classes A to D based on flight-test behaviour under the European EN standard.

EN rating

Harness

The equipment that supports the pilot beneath the wing.

Helmet

Protection for the pilot’s head.

Leading edge

The front edge of the wing, where the airflow meets the canopy and the cell openings sit.

Lines

The cords connecting the canopy to the risers, with suspension lines carrying the load.

suspension lines

Open harness

A harness without a leg cover, in which the pilot sits with legs free.

Pod harness

A harness with a leg cover that encloses the pilot's legs in flight.

cocoon harness

Reserve parachute

A separate emergency parachute carried for use during flight.

reserverescue parachute

Reversible harness

A harness that turns inside out to become a rucksack for the whole kit.

Risers

The straps between the paraglider’s lines and the harness attachment points.

Speedbar

A foot-operated system that changes the wing’s suspension geometry to increase airspeed.

speed barspeed systemaccelerator

Trailing edge

The rear edge of the wing, where the brake lines are attached.

Two-liner

A wing whose suspension lines join into only two main rows, A and B.

2-liner

Wind streamer

A simple ribbon or strip of fabric that mainly shows wind direction.

streamer

Windsock

A fabric tube on a pole that shows wind direction and gives a rough idea of its strength.

Wing

The lifting part of a paraglider, connected to the pilot by lines and risers.

canopy

Air and weather

28

Blue hole

An area without cumulus in an otherwise cumulus-filled sky, where thermals are weak or absent.

Cloud street

Cumulus clouds lined up by the wind into long bands.

Cloud suck

Strengthening lift just below the base of a cloud.

cloudsuck

Cloudbase

The lower boundary of a cloud.

cloud base

Cumulus

A heap-shaped convective cloud with distinct edges.

Dust devil

A narrow, rapidly rotating column of rising air near the ground, made visible by dust.

Gust front

Strong, gusty wind flowing out of a thunderstorm and spreading across the ground.

outflow

Gusts

Brief increases in wind speed above the average.

wind gust

Inversion

A layer in which temperature rises with height instead of falling, so thermals stall in it.

temperature inversion

Lee

The side of a slope or obstacle sheltered from the incoming wind.

leeward

Lift

Rising air that can help a glider maintain or gain height.

updraughtupdraft

Overcast

Cloud cover that blankets the whole sky and shuts out the sun.

Ridge lift

Rising air produced when wind is deflected upwards by a slope.

slope lift

Rotor

A region of rotating airflow that can form on the lee side of terrain.

Sink

Air moving downwards.

sinking air

Stable air

Air whose layering stops warm air from rising far.

Synoptic wind

The large-scale wind set by pressure systems, as shown in the forecast.

Thermal

A rising current driven by differences in air temperature and density.

thermal lift

Thermal bubble

A detached parcel of warm air that breaks away from the ground and rises on its own.

bubble

Thermal ceiling

The height to which rising warm air climbs before thermals die out.

top of lift

Thermal core

The part of a thermal where the air rises most strongly.

core

Thermal drift

The displacement of a thermal by the wind, so it rises at a slant downwind instead of straight up.

drifting thermal

Turbulence

Irregular, swirling airflow with changes in speed and direction.

Valley wind

A thermally driven daytime flow that draws air up the valleys towards the ridges in big mountains.

up-valley wind

Variable wind

Light wind that keeps changing direction.

Venturi effect

The acceleration of wind through a constriction in the terrain or over the top of a hill.

venturislang

Wind shear

A sudden change in wind direction or speed with height.

Windward

The side of a slope or obstacle facing the incoming wind.

Flying

29

Airspace

Defined parts of the sky in which particular rules of operation apply.

Airspeed

The speed of the glider relative to the surrounding air.

Big ears

A descent technique in which the wingtips are folded in to reduce the wing’s area.

Centring

Placing your circles over the strongest part of a thermal.

coringslang

Cobra launch

A launch technique for strong wind in which the wing is raised from the side.

Collapse

A deformation in which part of the inflated canopy folds or loses its flying shape.

canopy collapse

Cravat

A situation where part of the canopy, usually the wingtip, gets caught in the lines.

cravatte

Forward launch

A launch in which the pilot has their back to the wing and runs in the direction of flight.

alpine launch

Frontal collapse

A collapse of the leading edge across the whole span of the wing.

front collapse

Glide ratio

Horizontal distance travelled per unit of height lost in a glide.

Groundhandling

Practising control of the wing while staying on the ground.

ground handlingkitingslang

Groundspeed

The speed at which the pilot moves over the ground.

ground speedGSabbreviation

Landing

The final part of a flight in which the pilot returns to the ground.

Landing field

An area chosen or designated for landing.

Launch site

The place pilots take off from, usually on a hill or slope.

launch

Reverse launch

A launch in which the pilot faces the wing while inflating it.

Ridge soaring

Soaring in air that wind pushes upwards along a slope.

slope soaring

Sink rate

The speed at which a glider descends through still air.

SIV course

A course in which pilots practise flight incidents under instructor supervision, usually over water.

SIVabbreviation

Soaring

Using rising air to maintain or gain height without engine power.

Spin

A state in which one half of the wing is stalled and flies backwards while the other flies forwards.

negative spin

Spiral dive

A rapid descent in a tightening turn with high G-forces.

Stall

A state in which excessive angle of attack separates the airflow and disrupts the wing’s normal lift.

Takeoff

The transition from the ground into flight.

take-offlaunch

Thermalling

Circling in a thermal to gain height.

Top landing

Landing up at or near launch instead of in the landing field below.

Tree landing

An unintended landing in the crown of a tree.

Twist

A situation where the pilot rotates relative to the wing and the risers twist above them.

Wingover

A series of linked alternating turns with gradually increasing bank.

Instruments

10

Terrain

3

Cross-country and competitions

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