The Nautor Swan 51, a masthead sloop, was designed by German Frers and built in Finland by Nautor.
Underwater Configuration: Fin keel & spade rudder
Hull Material: GRP (Fibreglass)
Length Overall: 51'3" (15.6m)
Waterline Length: 42'4" (12.9m)
Beam: 14'8" (4.5m)
Draft: 8'11" (2.7m)
Rig Type: Masthead sloop
Displacement: 39,600lb (17,962kg)
Designer: German Frers
Builder: Nautor Swan (Finland)
Year First Built: 1980
Year Last Built: 1985
Number Built: 36
1. Sail Area/Displacement Ratio: 17.9
2. Ballast/Displacement Ratio: 41.7
3. Displacement/Length Ratio: 233
4. Comfort Ratio: 38.0
5. Capsize Screening Formula: 1.7
1. A Sail Area/Displacement Ratio of 17.9 suggests that the Nautor Swan 51 will, in the right conditions, approach her maximum hull speed readily and satisfy the sailing performance expectations of most cruising sailors.
2. A Ballast/Displacement Ratio of 41.7 means that the Nautor Swan 51 will stand up well to her canvas in a blow, helping her to power through the waves.
3. A Displacement/Length Ratio of 233, tells us the Nautor Swan 51 is a moderate displacement cruiser, which means she'll carry all your cruising gear without it having a dramatic effect on her performance. Most of today's sailboats intended for offshore cruising fall into this displacement category.
4. Ted Brewer's Comfort Ratio of 38.0 suggests that crew comfort of a Nautor Swan 51 in a seaway is similar to what you would associate with the motion of a moderate bluewater cruising boat - a predictable and acceptable motion for most seasoned sailors.
5. The Capsize Screening Formula (CSF) of 1.7 tells us that a Nautor Swan 51 would be a safer choice of sailboat for an ocean passage than one with a CSF of more than 2.0.
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