Translation glossary: Paragliding & Free Flight Glossary

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Foehn windIs a warm and dry wind, encountered on the lee side of a hill or mountain where lifting of the air mass causes precipitation. 
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FrontIn meteorology it is the boundary which separates warm and cool air masses. 
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GaggleA groupe of pilots flying together in a thermal. 
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Geostrophic WindIs the wind that blows due to the influence of ground friction. 
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glass-offLovely, glassy-smooth lift. Occurs in the early evening at mountain sites as warm air collected in the valleys lifts off and gently rises into the cooling upper atmosphere. In the dinner menu of flying conditions, glass-off is crème brûlée. 
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GlideA ratio that describe how far the wing will travel for every unit altitude that is lost. L/D (Lift/Drag) is a pure number that is one of the characteristics of a wing. In real life, the glide can vary considerably depending on the wind/lift conditions. 
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Glide angleThe angle between the glide path and the horizontal. 
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Glide pathThe flight path of a glider. 
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Glide RatioThe horizontal distance traveled relative to the amount of vertical drop. 
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GliderAn aircraft that remains flying solely through the energy of gravity only. 
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GlidingFlight that continues from an elevated point to a lower point. 
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GoresThe separate panels of a parachute equivalent to cells on a paraglider. 
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GPSGlobal Positioning system by Satelite. 
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GPSGlobal Positioning System 
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GrabbingIs the technique correcting the shift in ground track due to cross wind. 
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Gradient WindWhen geostrophic wind is moving in a curved trajectory, on approaching the core of a low, it will experience a counteracting centrifugal force, which will diminish or moderate it. 
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Gross weightTotal weight of the glider and the heaviest allowed payload (pilot). 
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Ground gripperNon-pilot 
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Ground speedThe velocity of a glider over the ground. This is different from airspeed if any wind is present. 
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GumbyWhen a pilot, fails to get into the seat. 
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hang driving/paradrivingAn off-shoot of hang gliding/paragliding, practiced en route to hangwaiting/parawaiting sites. 
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hang waiting/parawaitingAn ancillary sport to hang/paragliding, practiced while sitting on launch hour after hour until the narrow window of flyable conditions finally opens. If it does. 
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HarnessA suspension system that supports a pilot and attaches him to a glider. 
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HeadingThe direction a glider points (this will be different from actual flight direction in a cross wind). 
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HeadwindA wind from the front or opposite the heading. 
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hexagon theorya theory of thermal formation proposed in the 1980\'s by a team of French meteorologists. They concluded that, in nil wind conditions, thermals form along the edges of a hexagonal pattern with regular length sides. In wind, two sides of the hexagon line up with the wind direction, these two sides becoming elongated as the wind becomes stronger. 
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HGAcronym for Hand Gliding 
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hgfaacronym for the Australian governing body of hang-gliding and paragliding, the Hang-gliding Federation of Australia. 
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homologationfrom homologate: confirm; approve; agree; (law) confirm or ratify by a court. In the context of paragliding, a series of airworthiness tests conducted to ascertain and rate the overall characteristics of a wing in flight. 
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honkin’Really strong wind conditions. “It’s not too bad in the LZ, but it’s honkin’ on launch.” 
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Hook In WeightThe total weight of the pilot and all equipment, excluding the paraglider. 
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Hook KnifeA special knife used in emergencies to cut paraglider or tow lines. 
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Hook KnifeA paragliding accessory. A knife with a special, proteted blade that allows the pilot to cut the wing loose (risers) in an emergency. 
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Horseshoe stallA maneuver whereby one each side inner central A line are held until the canopy collapses in the form of a horseshoe. 
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hypothermiaa physical condition where wind, wetness and/or altitude take away body heat faster than it can be produced. Pilots flying at height without adequate clothing can suffer hypothermia by wind chill effects on core body tempurature. Symptoms (not in any order): lethargy; loss of coordination; loss of concentration; slurred speech; blurry vision; and loss of consciousness. 
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hypoxiaa medical condition where the body suffers from a lack of oxygen. As altitude increases, air pressure and oxygen levels decrease, enabling less oxygen to pass through the lungs and be absorbed into the bloodstream. Symptoms (not in any order): hyperventilation; lethargy; euphoria; loss of coordination; blurry vision; headaches; nausea; and loss of consciousness. 
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InflationThe act of brining a glider overhead and inflating it with air. Every good launch starts with a solid inflation. 
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InstabilityAn unstable air mass with a lapse rate greater than the dry adiabatic lapse rate (1 C/100m). 
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InversionAn inversed temperture profile with altitude. The temperature rises (rather than falls) with altitude gain -Indicates a very stable day (High Pressure) and that you might be better off going to work after all. 
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IPAIsraeli Paragliding Assocation 
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ippiacronym for International Pilot Proficiency Identification, an international hang-glider and paraglider pilot ID card issued via the governing body of the pilot\'s home country. 
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IsobarsAre curved lines on a weather map which connect points that have the same atmospheric pressure. 
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KitingUsed more often as ground control. 
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KitingThe art of flying a paraglider while on the ground. Good kiting skills are essential for a good launch technique. A good pilot can kite for a long time without looking over-head. 
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Laminar AirSmooth, non-turbulent air. 
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Landing GearYour legs. 
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Lapse RateThe rate at which the temperature falls with altitude gain. A healthy lapse rate indicates an unstable day with good potential for soaring flights. [top] 
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launch potatoEver notice how there’s always someone at the head of the line taking forever and holding up everyone else – putting down roots? When it’s a line of pilots ready to launch, that person becomes a launch potato. 
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Leading edgeThe forwardmost part of a wing. The spar that forms this forward part. 
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LiftUprising air used by the pilot to soar. 
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