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The Racing Fleet

Sigma 33 OOD - Troy

The Sigma 33 OOD (Offshore One Design) was designed by David Thomas, and introduced in 1978, becoming an immediate success. The original Sigma 33 OOD has a deep fin keel and a fractional rig. From 1981 onwards a 'detuned' cruising version was also produced, with less sail area on a shorter masthead rig, and a shallower but heavier fin keel. Although still moderately fast yachts, and excellent boats, these were never as popular as the original OOD versions, which were equally capable as cruising and racing yachts. About 450 of the two types were built, until production ended in the early 1990s.

Despite being an old design, Sigma 33s still turn up doing well in almost every major offshore event's race results, and have made long passages as pure cruisers - at least one has circumnavigated and several have crossed the Atlantic. Their heavy weather ability was proved early on as two survived the 1979 Fastnet race

Sigma 33 OOD Stats

Builder:  Sigma Yachts/Marine Projects

Length: OA 33' 6"

Sail Area: 573 sq ft main and genoa on OOD version

Length: WL 26' 3"

Rig: Sloop

Beam: 10' 6"

Cabins: 2

Draught: 5' 9" deep

Berths 6

Displacement: 9,500 lbs

Engine type: Volvo 2020 diesel

Ballast: 3,800 lbs

Engine bhp: 18hp

Keel type: Deep fin keel with spade rudder

Troy: Sailing Achievements