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The Mad Ravens team of wind tunnel instructors have supreme control - able to flip over, hang upside down and zoom past each other without colliding. The team from Prague, Czech Republic, was founded in 2012 by friends Radek Meduna, 33, and Václav Dek, 26.
Redek said: 'Me and Václav wanted to create a team of good friends who will not only compete, but also organise events, spend time together, and aim for the same goals. The team spirit is much more than to be just an individual flyer.