Design and Construction
The 362's most consequential design fact is that it carries the same hull as the Sigma 36 but wears a different rig and coachroof, a strategy that let Marine Projects offer a cruising-oriented variant without retooling the mold. The hull and deck are both fibreglass, and the boat sits on a fin keel with a draft that varies between about 1.85 and 1.95 metres depending on load. At 36 feet overall with an 11.5-foot beam, a displacement near 12,400 pounds, and a lead ballast of 5,160 pounds, the 362 shows a ballast ratio of 42 percent and a length-beam ratio of 3.13 — proportions that, alongside a displacement-length ratio of 240, mark her as a moderately loaded cruiser-racer rather than a featherweight daysailer. The Motion Comfort Ratio of 24.5 and an immersion rate of about 206 kg/cm round out a hull package built for settled offshore motion over twitchy responsiveness.
Rig and Handling
The 362 is built with a masthead rig and carries a sail area of 55.2 square metres for mainsail plus jib. Her sail-area-displacement ratio is 17.3 with the ISO 8666 reference sail and rises to 20.6 with a 135 percent genua; reviewers calculating the distribution found the boat is slightly overrigged, which indicates an overdrive tuned for passage pace. That overdrive, paired with a theoretical maximum hull speed of 7.2 knots and a capsize screening value of 1.97, gives a sense of a vessel tuned for passage pace: cruise speed is recorded at 6.0 knots and max speed at 7.0 knots. The wet bottom surface of about 35 square metres supports that balanced, speed-minded profile without implying anything the records do not state.
Accommodations
Below, the Sigma 362 is equipped with two cabins and seven berths, and the interior is like most other boats made of teak. Headroom is described as above average for the class, and the fresh water capacity is 300 litres against an 80-litre fuel tank. Those volumes — 79 US gallons of water and 21 of diesel — support the cruising intent behind the coachroof change, giving the boat range and liveaboard capacity that the racing-orientated Sigma 36 hull alone would not have advertised.
Known Issues
The documented record for the Sigma 362 itself is sparse on defects: no structural or systems weaknesses are attributed to the model in the available material. The principal cautions come by lineage. British Sigma hulls of the era, including the 33, 36, and 38, were constructed with solid fibreglass laminates and foam-cored floors and integral bulkheads, and the Sigma 38's Marine Projects deck used a balsa core noted by marine surveyors to be susceptible to softening over time. The 362's own deck is recorded as solid fibreglass, not balsa-cored, so the softening risk documented for the 38 does not transfer as a stated fact to this model — but a buyer should still treat any cored sibling comparison as a survey question, not a given fault.
Refits and Ownership
Ownership facts on the 362 are largely defined by her equipment options and dimensions. The boat may be equipped with an inboard Volvo Penta 2003 diesel engine rated at 37 hp, driving through a shaft drive — a straightforward mechanical layout that ages predictably. Halyard and sheet specifications are fully documented, from a 32.6-metre, 12 mm mainsail halyard down to 14 mm mainsheet and genoa sheet runs of 27.5 and 11.0 metres respectively, which means replacement rigging can be specified exactly without guesswork. That precision, combined with a known coachroof and rig interface carried over from a proven hull, makes the 362 a tractable boat to maintain.
The Verdict
The Sigma 362 is a considered cruiser-racer: a David Thomas hull shared with the Sigma 36, re-rigged and re-roofed for cruising, with above-average headroom, seven berths, and a slightly overrigged sail plan that delivers a 7-knot top speed from a 7.2-knot hull limit. She is a British-built fibreglass boat of clear lineage and measurable performance, without drama or documented model-specific defects.
Pros
- Shares the proven Sigma 36 hull with a cruising-oriented rig and coachroof
- Above-average headroom with two cabins and seven berths
- Slightly overrigged sail plan (SA/D 20.6 with 135% genua) for strong cruising pace
- Fully documented rigging dimensions simplify replacement and refit
Cons
- No documented model-specific defect list, but cored-deck sibling softening noted on Sigma 38 warrants survey vigilance
- Draft varies 1.85–1.95 m with load, limiting very shallow harbours
