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International A-class catamaran
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International A-class catamaran
The A-Class Catamaran, often abbreviated to A-Cat, is a development class sailing catamaran for singlehanded racing.
The class was founded during the late 1950s and was part of the 4-tier IYRU (now World Sailing) approach to divide up the sports catamaran sailing scene into 4 separate groups. These A, B, C and D classes were governed by a very small set of class rules to which each design had to comply. In the beginning it was just:
All boats designed and built to these specs would be grouped into one fleet and race each other for crossing the finish line first.
The A-Class is the largest remaining of those 4 main classes. The ‘B’ class was a 20 ft twin hander with 235ft2 of sail and developed into the Tornado and a few offshoots such as the F18. The ‘C’ class was another twin, but at 25 ft with a 300ft2 rig, has become a super sophisticated monster and the pinnacle of small cat design that races for the Little America's Cup. The ‘D’ Class was 32 ft and a sail of 500ft2 with three crew, but rapidly dwindled away.
The official organisation for the A-Class catamaran is the IACA (International A division Catamarans Association).
The A-Class rules were expanded over time to prevent the cost of these boats from rising too high and to ensure fairness in racing.
Currently the main A-Class rules are:
In handicap racing, the A-Class catamaran uses a Portsmouth Yardstick of 681 in the UK or a D-PN of 64.5 in the USA.
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International A-class catamaran
The A-Class Catamaran, often abbreviated to A-Cat, is a development class sailing catamaran for singlehanded racing.
The class was founded during the late 1950s and was part of the 4-tier IYRU (now World Sailing) approach to divide up the sports catamaran sailing scene into 4 separate groups. These A, B, C and D classes were governed by a very small set of class rules to which each design had to comply. In the beginning it was just:
All boats designed and built to these specs would be grouped into one fleet and race each other for crossing the finish line first.
The A-Class is the largest remaining of those 4 main classes. The ‘B’ class was a 20 ft twin hander with 235ft2 of sail and developed into the Tornado and a few offshoots such as the F18. The ‘C’ class was another twin, but at 25 ft with a 300ft2 rig, has become a super sophisticated monster and the pinnacle of small cat design that races for the Little America's Cup. The ‘D’ Class was 32 ft and a sail of 500ft2 with three crew, but rapidly dwindled away.
The official organisation for the A-Class catamaran is the IACA (International A division Catamarans Association).
The A-Class rules were expanded over time to prevent the cost of these boats from rising too high and to ensure fairness in racing.
Currently the main A-Class rules are:
In handicap racing, the A-Class catamaran uses a Portsmouth Yardstick of 681 in the UK or a D-PN of 64.5 in the USA.
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