Somewhere between a race car, a light plane and a yacht there is the Greenbird, a light craft powered only by the wind. Engineer Richard Jenkins is on a mission break both the land and ice world speed records. He's giving it a go on the ice-covered Canyon Ferry Reservoir in Montana attempting to be the fastest sail-powered man ever to race across the face of the earth. Currently the record for a purely sail-powered vehicle on land stands at 116mph and the highest reliable recorded sailing speed on ice is 84mph. Jenkins is hoping to hit a speed of 120mph or even 125mph. In UK land-based trials, Greenbird unofficially touched 120mph when fitted with wheels and he's hoping for a faster speed on ice.
[via The Telegraph]