Image of Bill Parish sailing the Delta at Lake Buchanan, Texas, USA during a speed sailing event. A few seconds after this photo was taken, the boat cart-wheeled, throwing Bill 30 feet in the air. The whole event was recorded by a professional video on the boat at the start gate. Image kindly supplied by Ned Snead of www.sneadresearch.com.
This clearer image is of British sailor Malcolm Barnsley using a different version of the Delta. Malcolm has gone on to develop the Sailrocket, a craft with which he aims to reclaim the world speed saling record for the UK.
Ned, or Edwin des
Snead, as he is formally known, was granted two US patents, #4,671,198
and #4,708,075
for this craft in the mid-80s.