The Mason 43, a heavy displacement long keeled cruiser, was designed by Al Mason and built in Taiwan by Ta Shing Yacht Building.
Underwater Profile: Long keel
Hull Material: GRP
Length Overall: 43'10" (13.40 m)
Waterline Length: 31' 3" (9.53 m)
Beam: 12'3" (3.73 m)
Draft: 6' 3" (1.91 m)
Rig Type: Cutter, but also available as a staysail ketch
Displacement: 25,000 lb (11,340 kg)
Designer: Al Mason
Builder: Ta Shing Yacht Building (Taiwan)
Year First Built: 1978
Year Last Built: 1985
Number Built: 180
1. Sail Area/Displacement Ratio: 14.5
2. Ballast/Displacement Ratio: 33.6
3. Displacement/Length Ratio: 366
4. Comfort Ratio: 39.2
5. Capsize Screening Formula: 1.7
1. A Sail Area/Displacement Ratio of just 14.5 suggests that the Mason 43 will need a stiff breeze to get her going. In light conditions, unless you've got plenty of time on your hands, motor-sailing may be the way to go.
2. A Ballast/Displacement Ratio of 33.6 means that the Mason 43 will have a tendency to heel excessively in a gust, and she'll need to be reefed early to keep her sailing upright in a moderate breeze.
3. A Displacement/Length Ratio of 366, tells us the Mason 43 is firmly in the ultra-heavy displacement category. Load her up as much as you like and her performance will be hardly affected, not that it was ever startling. Few if any sailboats are built to this displacement category these days - but they remain popular with some long-distance sailors.
4. Ted Brewer's Comfort Ratio of 39.2 suggests that crew comfort of a Mason 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 Mason 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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May 26, 23 09:28 AM
May 19, 23 05:13 AM