Aerodynamics: How lugers understand and master this X factor for racing

Aerodynamics is crucial in luge because, at high speeds, air resistance becomes the athlete’s main source of braking. The first aspect a luger can directly control is their position on the sled – more specifically, the position of their head and their feet.

A luger can improve their aerodynamic efficiency by optimising their streamlined posture
on the sled, keeping the head low and back, and the feet fully extended.

Speaking on the subject, 2015 Russian world champion Semen Pavlichenko, also a multiple European champion, explained that as a young athlete he was strongly influenced by advice from his coach, German luger Georg Hackl (three-time Olympic champion), and from Italian legend Armin ‘The Cannibal’ Zöggeler (six consecutive Olympic medals, six-time world champion, four-time European champion, ten World Cup titles, etc.): "He told me I would only be fast if I learned how they did it, so I studied their races and how they positioned themselves."

However, a luger’s body position has a double effect. While it can help gain valuable fractions of a second or compensate for small mistakes, it can also create problems that are difficult to correct once the run has started. Finding the right position is therefore a constant challenge, particularly as a luger has very limited room for adjustment during competition.

There are two main forces that slow a luge. The first is technical and relatively constant: friction between the runners and the ice. The second is aerodynamic drag, which depends on several factors, including air density, the speed of the sled, the drag coefficient and the cross-sectional area exposed on the track. A luger cannot influence all of these at once. However, the final two can be adjusted by leaning the head back, positioning the feet correctly and carefully monitoring body weight before entering the track.

Another important tool for managing air resistance is equipment, particularly the racing suit, which have evolved significantly over time. Once heavy, uncomfortable, and prone to overheating with poor thermal regulation on the track, they now incorporate advanced technologies. Thermal panels, multilayer fabrics and smart materials that adapt to race and weather conditions in real time make modern suits more aerodynamic, close-fitting and resistant to creasing.

To achieve optimal performance, suits are tested in wind tunnels to assess both the fabric and the athlete’s position. In the United States, for example, the San Diego wind tunnel has been providing advanced testing facilities to public and private organisations, the armed forces, and Olympic teams since 1947.

Finally, the sled itself must not be overlooked, particularly the runners, which are a critical component of luge performance. The type of steel used and the design of the runners (including their radius and the angle at which they contact the ice) must be carefully considered and present ongoing challenges for technical teams. Extensive testing is carried out on different tracks, at varying temperatures and under a wide range of ice conditions. As lugers like to say, every detail matters.

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