The high-performance Inland 20 (I-20), with its slightly tunneled hull, modern, high aspect rig and asymmetrical spinnaker tacked on a retractable bow sprit, is one of
the sportiest of the scows. Its performance off the wind is truly awesome! While it is raced with two people, the great number of adjustments available, including spinnaker gear, keep the crew as
well as the skipper busier than on any other scow. Fast and responsive, it requires both to be "on their toes." The National Inland 20 Scow Sailing Association, in cooperation with the Inland Lakes
Yachting Association and the I-20 builder, Windward Boat Works
, promotes the class and governs its scantlings and other rules.