The Swan 43, a masthead sloop, was designed by Sparkman & Stephens and built in Finland by Nautor Swan.
Underwater Profile: Fin keel with skeg-hung rudder
Hull Material: GRP
Length Overall: 42'9" (13.0m)
Waterline Length: 31'0" (9.5m)
Beam: 11'8" (3.6m)
Draft: 7'2" (2.2m)
Rig Type: Sloop
Displacement: 19,850lb (9,000kg)
Designer: Sparkman & Stephens
Builder: Nautor Swan
Year First Built: 1967
Year Last Built: 1982
Number Built: 67
Owners Association: S&S Swan Association
1. Sail Area/Displacement Ratio: 18.1
2. Ballast/Displacement Ratio: 52.4
3. Displacement/Length Ratio: 297
4. Comfort Ratio: 33.7
5. Capsize Screening Formula: 1.7
1. A Sail Area/Displacement Ratio of 18.1 suggests that the Swan 43 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 52.4 means that the Swan 43 will stand up well to her canvas in a blow, helping her to power through the waves.
3. A Displacement/Length Ratio of 297, tells us the Swan 43 is clearly a heavy displacement cruising boat. You can load her down with all your cruising gear and equipment and it will hardly affect her waterline. Not an ideal choice for coastal sailing, but she'll come into her own on an offshore passage in testing conditions.
4. Ted Brewer's Comfort Ratio of 33.7 suggests that crew comfort of a Swan 43 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 Swan 43 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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