Design and Character
Sparkman & Stephens drew the She 33 as a late-seventies design, and the published ratios show where she lands. Her displacement-to-length ratio of about 204 places her among what reviewers categorize as "moderate racers," while a length-to-beam ratio of 3.05 and a beam of roughly 10.6 feet give her a proportioned, rather than exaggerated, hull form DL-ratio of 204. The motion comfort ratio of 15.7 and an immersion rate of about 880 pounds per inch suggest a hull that settles predictably under load rather than skittering. Her capsize screening value of 2.30 is the line that tells the story: that figure indicates she would not be accepted to participate in ocean races, which frames her honestly as a sheltered-water and coastal boat rather than a bluewater contender.
Rig and Sail Plan
The She 33 is built with a masthead rig and a reference sail area that yields a sail-area-to-displacement ratio of 19.4; hoist the working 135 percent genoa and that number rises to 23.4, a meaningful jump that speaks to how much her personality depends on the forward triangle masthead rig. The halyard and sheet inventory is thoroughly documented: all three halyards — mainsail, jib/genoa, and spinnaker — run 27.6 meters with 10-millimeter diameter, while the genoa and jib sheets are 9.8 meters of 12-millimeter line and the mainsheet is a 24.5-meter, 12-millimeter run. A spinnaker sheet of 21.6 meters, plus a 3-meter cunningham and 6.1-meter kicking strap and clew outhaul, round out a control plan sized for a boat that expects to fly synthetic canvas when the breeze cooperates.
Performance Envelope
Theoretical hull speed for a displacement boat of her length is 6.6 knots, and her fin keel sits at 5.41 to 5.71 feet loaded, which keeps her inside the draft limits of most marinas. The wetted surface of the underwater body is about 290 square feet, a figure that, combined with the moderate displacement, explains the 6.6-knot ceiling more than any lack of sail. She is not a lightweight planing hull, nor does the data suggest she tries to be.
Construction
The hull is fiberglass, built by a British yard that produced the She series. Ballast is iron, and the solid fiberglass hull and deck structure reflect a 1970s British production ethos rather than a later cored-composite experiment.
The Verdict
The She 33 is a coherent late-seventies Sparkman & Stephens cruiser-racer whose documented ratios place her firmly in the moderate-displacement coastal camp. She is well mannered by the numbers, easy enough to berth given her draft, and responsive to a genoa-driven sail plan, but her capsize screening value is the honest caveat for anyone eyeing ocean work.
Pros
- Moderate racer D/L and comfort ratios suggest predictable, settled motion under coastal conditions
- Masthead rig with genoa lifts sail-area-to-displacement from 19.4 to 23.4
- Load-dependent draft of 5.41–5.71 feet keeps her in most marina depths
Cons
- Capsize screening value of 2.30 excludes her from ocean-race acceptance
- Wetted surface of 290 square feet and 6.6-knot hull speed cap her as a displacement coastal boat






