| Sail No. | Model | Name | Year | Location | Member | Notes |
|---|
| - | K20 | Altair | - | North East 1966 | n | - |
| - | K20 | Amethyst | - | South Coast 2005/7 | n | - |
| - | K20 | Anjune | - | East Coast 1973 | n | - |
| - | K20 | Anna Malone | - | Germany 2007/10 | y | Ex Crazy Blue |
| - | K20 | Available Light | - | Chesapeake Bay USA 2004 | n | - |
| - | K20JR | Chinee | - | South Wales 2007/13 | y | KYOA 2002; Ex.Chinee 2004, Ex Lee Ho 2011; South Wales 2002/07; Converted K20 to JR |
| - | K20 | Jane Anne III | - | Last known 1979 | n | - |
| - | K20 | Jorotje | - | North Wales 1966 | n | - |
| - | K20 | Kim | - | Last known 1966 | n | - |
| - | K20 | Learigg | - | Last known 1994 | n | Ex. Solong |
| - | K20 | Lee Ho | - | South Wales 2006/07 | n | - |
| - | K20 | Lepsima | 1966 | - | n | - |
| - | K20 | Loggerhead | 1965 | Virginia USA 2014 | n | Ex. Forrerway |
| - | K20 | Peigi | - | East Coast 2009 | n | KYOA 2010 |
| - | K20 | Petrushka | - | Sweden 2004/06 | n | KYOA 2004/06 |
| - | K20 | Schreemz | - | Ebay 2015 | n | - |
| - | K20 | Seivad | 1966 | - | n | - |
| - | K20 | Serenity | - | NSW Australia 2004/07 | n | - |
| - | K20 | Slow But Sure | - | Baltimore, USA 1987 | n | - |
| - | K20 | Snowgoose | 1968 | East Coast 2013 | n | - |
| - | K20 | Spinalong | - | UK 1987 | n | - |
| - | K20 | Spirit | - | South West 2013 | n | - |
| - | K20 | Strider | - | East Coast 2010-2013 | y | East Coast 1966; East Coast 2005/07; KYOA 2005/10 |
| - | K20 | St. Joe | - | Midlands 2001 | n | - |
| - | K20 | The Bear | - | Maryland USA 1966 | n | - |
| - | K20 | Tianesse | - | East Coast | n | - |
| - | K20 | Tilly | - | South East 2000 | n | - |
| - | K20 | Victoria | - | Broads 2006 | n | KYOA 2006 |
| - | K20 Plus | Voyager | - | Dubai 2004 | n | Ex. Tinker Bell 2003 |
| - | K20 | Windraiser | - | South Coast 2001 | n (01) | - |
| - | K20 Plus | Alexandra | - | South Wales 2010-2013 | y | KYOA 2010 |
| JR | K20 Plus | Askari | - | - | n | Conversion to junk 1978 |
| JR | K20 Plus | Alma | - | France 1976 | n | - |
| - | K20 Plus | Bambw | 1976 | Wales 1983 | n | Reg No.366393; Reg T.3.0 |
| - | K20 Plus | Calipso | - | South East 2009/10 | n | KYOA 2010 |
| JR | K20 Plus | Caurryhaundit | - | East Coast Scotland 2013 | n | - |
| - | K20 Plus | Cloudberry | - | USA 2009/10 | n | - |
| - | K20 Plus | Galaxie | - | BC, Canada 1968 | n | - |
| 1133 | K20 Plus | Giggles | - | South Coast 2005/13 | y | Replacement Sail No. |
| JR | K20 Plus | Griffin | 1977 | USA 1978 | n | 2nd in Bob Salmon mini-trans 1977 |
| JR | K20 Plus | Jubilee | - | East Coast | n | - |
| - | K20 Plus | Littlestint | - | South Coast 1971 | n | - |
| - | K20 Plus | Mabydick | - | South Coast 2010 | n | KYOA 2010 |
| JR | K20 Plus | Mandolin | - | South East 2013 | y | - |
| JR | K20 Plus | May Morning | - | North West 2000 | n | - |
| - | K20 Plus | Selena | - | South West 2000 | n | - |
| - | K20 Plus | Sea Witch | - | North 1971 | n | - |
| - | K20 Plus | Shapes | - | East Coast 1968 | n | - |
| - | K20 Plus | Shebash | - | South Coast 2003 | n | KYOA 2003 |
| - | K20 Plus | Snowgoose | - | South Coast 1971 | n | - |
| JR | K20 Plus | Suzie Wong | - | South Coast 1976 | n | - |
| - | K20 Plus | Tamboo | - | East Coast 1971, 2013 | y | KYOA 2010 |
| JR | K20 Plus | Vanity | - | New York, USA 1987 | n | Last heard of on a circumnavigation |