Sigma 362 Sailboat Review, Specs, and Listings

David Thomas·1983·Sigma Yachts
Approximate drawing

Hover a measurement to read its value

Hull Type
Monohull · fin
Rig
Masthead Sloop
LOA
36' · 10.97 m
Disp.
12,400 lbs · 5,625 kg
First year
1983

The Sigma 362 is a 36foot David Thomas design that grew out of the Sigma 36 fast cruiserracer, sharing that boat's hull while wearing a different rig and coachroof, and was built by Marine Projects Ltd. with construction also carried out at other yards. Conceived in the mideighties as the cruising development of Thomas's earlier 36, it sits squarely in the British Sigma line of cruiserracers that Marine Projects had been producing since the mid1970s.

Measurements

Dimensions 01

Length Overall
36 ft
Length on deck
Waterline Length
28 ft
Beam
11.5 ft
Draft
6.08 ft
Maximum Headroom
Air Draft

Construction & hull 02

Construction
Fiberglass
Hull Type
Monohull
Keel Type
Fin
Rudder
1× Spade
Ballast
5,160 lbs (Lead)
Displacement
12,400 lbs
Water Capacity
Fuel Capacity

Rig & sails 03

Rigging Type
Masthead Sloop
Mainsail luff
41.08 ft
Mainsail foot
13.5 ft
Foretriangle height
47.58 ft
Foretriangle base
13.33 ft
Forestay Length (estimated)
49.41 ft
Sail Area
594 sqft

Calculations 04

Sail Area to Displacement Ratio
17.74
Ballast to Displacement Ratio
41.61
Displacement to Length Ratio
252.17
Comfort Ratio
24.37
Capsize Screening Ratio
1.99
Hull Speed
7.09 kn

Design and Construction

The 362 keeps the solid fiberglass hull and deck of the Sigma 36, a straightforward GRP laminate with no core in the hull itself. At a length overall of 36 feet on a 28-foot waterline, a beam of 11.5 feet gives a length-to-beam ratio of 3.13, and the boat carries 5,160 pounds of lead ballast at a 42 percent ballast ratio against a 12,400-pound displacement. The fin keel draws about 6.1 to 6.4 feet depending on load, and a spade rudder completes the underwater profile. The hull's displacement-length ratio of 240 and a wetted surface near 35 square meters place her in the territory of a moderately heavy, easily driven cruiser rather than an ultralight racer, while the 1.97 capsize screening value and 24.5 motion comfort ratio describe a boat with reasonable offshore manners for her size.

Rig and Handling

Where the 362 diverges from the 36 is above the deck: a masthead sloop rig and a revised coachroof define her. With a reference sail plan of 594 square feet for mainsail and jib, her sail-area-to-displacement ratio is 17.3, rising to 20.6 with a 135 percent genoa, and the yachtdatabase review notes she carries more rig than 62 percent of comparable sailboats, marking her as slightly overrigged. That bias toward canvas, paired with a theoretical hull speed of 7.2 knots and a quoted cruise of 6.0 with a max of 7.0, suggests a boat that finds her stride off the wind under a full inventory. The standard running rigging is sized for the masthead layout — 12 mm halyards around 32.6 meters for mainsail, genoa, and spinnaker, 14 mm sheets for jib, genoa, and mainsheet, and a kicking strap and clew outhaul of 8.2 meters — dimensions a prospective owner should match when replacing worn lines.

Accommodations

Below, the Sigma 362 is laid out with two cabins and seven berths, and the interior is finished in teak like most of her contemporaries. Headroom is above average for a 36-footer, and the boat carries 300 liters of fresh water against an 80-liter diesel tank. Those volumes support extended cruising without the constant rationing that plagues smaller vessels, and the berth count lets a family or a racing crew sleep without converting settees into makeshift bunks every night.

Equipment and Power

The boat may be fitted with a Volvo Penta 2003 diesel rated at 37 horsepower, turning a shaft drive. That installation yields the cited 6.0-knot cruise and 7.0-knot top speed under power, and the 80-liter fuel capacity is modest but workable for a sailboat whose engine is primarily an auxiliary. The immersion rate of about 206 kg per centimeter speaks to how the hull settles with stores and water — useful context when loading for a passage.

The Verdict

The Sigma 362 is a considered evolution of the Sigma 36, trading some race-bred austerity for cruising accommodation while keeping a proven hull and adding a more powerful rig. She is a practical 36-foot cruiser-racer with above-average headroom, sensible tankage, and sea-kindly proportions, though her overrigged sail plan demands disciplined handling and line management.

Pros

  • Shares the proven Sigma 36 hull in solid fiberglass
  • Above-average headroom and seven berths across two cabins
  • 300-liter water and 80-liter fuel capacity for extended use
  • Sensible capsize and comfort ratios for a 36-foot cruiser

Cons

  • Slightly overrigged relative to peers, more demanding under sail
  • Modest engine horsepower for a 12,400-pound displacement

Similar sailboats

12 comparable designs · similar LOA, displacement & rig