My DN60 iceboat, Cass Lake, Michigan about 40 years ago.
Most popular iceboat ever built with clubs in North America and Europe, it was designed during the Great Depression by the Detroit News, a local newspaper, to provide an easily constructed and inexpensive hobby during those miserable times.
Length 12', breadth of runner plank 8', mast 16', 60 sqft sail, weight about 100lbs, single seater steered by tiller to front runner.
Claimed to have achieved over 90mph and easily reaches 50mph under decent conditions.
Picture added on 22 March 2017 at 09:57