"Ice Wing" Sail-in-Wing skatesail. Top speed 70 mph, 110 km/h. Leads kite sailor. Sails on one skate

Here an Ice Wing Skate Sail leads 9 kite sailors in a race on ice. Windspeed 10 knots, 5 m/s. Note wing sailor sails on one skate, leeward one. Other skate ready for support if some disturbance, eg a gust, retarding snow... For building instructions please see: https://sites.google.com/site/iwsellplans/.
For plenty about wing skate sailing see: https://sites.google.com/site/icewinghomepage/ .
For a possible 100 mph, 160 km/h, wing sail see: https://sites.google.com/site/iwspeedrecord/ . Building instruction: https://sites.google.com/site/iwsellplans/
For a video of "Ice Wing" winning a Two of a Kind race see: https://www.youtube.com/watch?v=gmJc8m3XICI .
Another video with "Ice Wing" sailor interviewed: https://youtu.be/3XZ_N3rrFWw
Short video of the Speed Ice Wing, 100 mph?, 160 km/h?: https://youtu.be/rZ0Ihr5UF5A
Location city Västerås 100 km west of Stockholm, Sweden. Ice is a fantastic natural resourse we have in the north. Great for sailing as the skate friction is only 1 % of the weight - far less than all other surfaces, water, land, snow. Skate sailing is to 95% aerodynamics! Documentary. January 2017.

Видео "Ice Wing" Sail-in-Wing skatesail. Top speed 70 mph, 110 km/h. Leads kite sailor. Sails on one skate канала Anders Ansar