Derek's achievements include:

• First to race N. Atlantic (solo) in a multihull;
• First to win a major open offshore race in a multihull;
• Britain's top multihull race designer for many years;
• Pioneer of sandwich construction methods (includes building monos to win 'Trans-Atlantic' and 'Whitbread Round the World' Races);
• First truly convenient trailer sailer catamarans - X-Kats;
• First truly amphibious catamarans - Amkats also as effective trailer sailers;
• Several designs and build projects were the largest of type at the time;
• Several performance records have been held by Kelsall boats;
• Recognition as one of the world's best multihull designers.

For the Record