Derek Kelsall
Derek Kelsall (15 May 1933 - 11 December 2022) was a naval architect residing in United Kingdom of Great Britain and Northern Ireland.
| Boat type | Design Year | Category |
|---|---|---|
| K 26 | ? | Trimaran |
| K-39 S.R. | ? | Trimaran |
| Tonga 40 S. R. | ? | Catamaran |
| Tonga Lima 31 | ? | Catamaran |
Naval Architects