Sarah Hendrickson hones her “in-run” position—her form as she approaches the jump—in a wind tunnel. This year, women will be competing in Olympic ski jump for the first time.
Sarah Hendrickson hones her “in-run” position—her form as she approaches the jump—in a wind tunnel. This year, women will be competing in Olympic ski jump for the first time. Nate Christenson/Red Bull Content Pool
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Sarah Hendrickson trains in the wind tunnel in Ogden, Utah on 17 July 2013. // Nate Christenson / Red Bull Content Pool // P-20130809-00023 // Usage for editorial use only // Please go to www.redbullcontentpool.com for further information. // PSC0214_Olympics

Sarah Hendrickson

Sarah Hendrickson trains in the wind tunnel in Ogden, Utah on 17 July 2013. // Nate Christenson / Red Bull Content Pool // P-20130809-00023 // Usage for editorial use only // Please go to www.redbullcontentpool.com for further information. // PSC0214_Olympics

Though it may seem like an eternity, ski jumpers typically spend just a few seconds in the air. To refine their form at various air speeds and temperatures, jumpers can use a wind tunnel—if they have access to one. Such facilities are scarce and expensive, and so were a rare luxury for U.S. team members before last year.

Video courtesy Red Bull Media House.

In May, Darko Technologies finished construction of a wind tunnel near the team’s base in Utah. The tunnel is primarily used for vehicles racing at the nearby Bonneville Salt Flats, but Alan Alborn, head coach of the women’s ski-jumping team, adapted it for his athletes by adding an elevated stand with ski bindings. Darko then custom built a device that projects lift and drag data onto the floor so that ski jumpers can evaluate it in real time. Skiers use the data to adjust their form and then practice it on outdoor ski jumps an hour away. “The close location means we get to use it more,” says Alborn, “and we’ve already seen dramatic effects on performance.”

Sarah Hendrickson hones her “in-run” position—her form as she approaches the jump—in a wind tunnel. This year, women will be competing in Olympic ski jump for the first time.

In-Run

Sarah Hendrickson hones her “in-run” position—her form as she approaches the jump—in a wind tunnel. This year, women will be competing in Olympic ski jump for the first time.

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This article originally appeared in the February 2014 issue of Popular Science.

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