| Picture | Name ▲ | Designer | Length | |
|---|---|---|---|---|
|
Sidewinder
|
Macal-pine-Downie and Gibbs | 15.5 ft | |
|
Sigma 29
|
Unknown | 29.0 ft | |
|
Sigma 33
|
Unknown | 33.0 ft | |
|
Sigma 33 Od
|
Unknown | 33.0 ft | |
|
|
Sigma 35
|
Unknown | 35.0 ft | |
|
Sigma 362
|
David Thomas | 36.0 ft | |
|
|
Sigma 38
|
Unknown | 38.0 ft | |
|
Sigma 400
|
Rob Humphreys | 40.0 ft | |
|
Signet 20
|
Unknown | 20.0 ft | |
|
|
Signet 20 Mk Ii
|
Unknown | 20.0 ft | |
|
|
Silouette 17 Mk Ii
|
Unknown | 17.0 ft | |
|
|
Siltala Nauticat 44
|
Unknown | 44.0 ft | |
|
|
Silver Gull
|
Unknown | 16.0 ft | |
|
|
Simi Dory
|
Mertens-Goossens | 11.0 ft | |
|
|
Si Mon
|
Mull, Gary | 32.8 ft |