How paragliding technology has changed
Lighter, faster, better? How paragliding technology has changed dramatically during the 5 editions of the Red Bull X-Alps.
The course is 864km long as the crow flies, the race can last over 12 days and yet the outcome of the Red Bull X-Alps—the alpine hiking and paragliding adventure rac —can be decided in minutes. Decisions about where to find the right thermals or reaching a summit take off quicker than a rival can result in covering 200km quickly by air, or slowly by foot.
Red Bull X-Alps athletes are constantly looking for an edge, and choosing the right technology is key to staying ahead of the game. Participants must carry their paragliders, helmet and harness with them at all times. At the very first Red Bull X-Alps in 2003, the participants used off-the-shelf paragliders that, along with the rest of their minimum equipment, weighed 20kg.
In 2011, their entire kit is likely to weigh as little as 7kg, and many will be using prototype gliders produced specifically by manufacturers to be flown and carried in this event. The harness will double up as a backpack, which can be packed up after landing in less than four minutes.
“Back (in 2003) I thought Red Bull X-Alps would be a flying competition and that we would spent most of the time up in the air,” says five-time participant Andy Frötscher (ITA). “I took my usual flying equipment, put it in a sack and started the race with 21kg of baggage. Looking back it was completely crazy!”
The development of lighter, non-porous materials and the growing popularity of the event meant that manufacturers had the incentive to produce better, more portable equipment that could be shown off to the world every two years at the Red Bull X-Alps. For example, the harness developed as a prototype for use by eventual winner Christian Maurer (SUI1) in 2009 is now on the market and sells extremely well.
“Paragliders have changed massively,” says paragliding journalist Hugh Miller. “Primarily the amount of lines connecting the harness and pilot to the wing have been reduced massively.”
“This cuts down the amount of weight and reduces the glider’s drag as it cuts through the air making the glide and speed much better,” says Miller. “Also, the gliders are now much more blade-shaped, again improving their speed and performance.”
The lines themselves are made from lighter stronger materials and are about 2mm in width, a reduction of over 75% compared with the very first paragliders. A top of the range competition glider such as the Gin Boomerang 8, which will be used by Vincent Sprüngli (FRA1), is constructed with a canopy made from lightweight ripstop nylon, and has lines constructed with Kevlar.
However, Race Director Christoph Weber says that although these gliders have a better glide ratio (the distance forwards that a glider travels in still air compared to the distance it drops downwards during that period) and are faster, they must still be hardy flying machines.
“The gliders have to perform in hard conditions during the Red Bull X-Alps, especially the extreme take-off places and in strong air turbulence. But these gliders could help the athletes by enabling them to make long flights which will bring them faster to goal.”But while athletes may have better equipment, can the end result actually be affected?
Thomas Theurillat, assistant to 2009 race winner Christian Maurer (SUI1) isn’t so sure.”In Formula 1 Michael Schumacher can’t win in a slow car—here the equipment is a crucial factor in success. But in tennis everyone has more or less the same equipment and the winner is determined by the player’s skill.”
“In 2009 Christian’s paraglider had similar performance to that of the other top teams and the determining factor was the athlete, not the equipment.”
The Red Bull X-Alps will be won by the athlete with the best overall strategy, fitness tactics and skill but the most advanced equipment is vital just to stay on a level with the pack. A lightweight glider is essential on foot, but it must perform in the air too.
This article was originally published on July 21, 2011