Samphire 23 Sailboat Review, Specs, and Listings

David M. Cannell·1977·~12 hulls·North Sea Craft
Approximate drawing

Hover a measurement to read its value

Hull Type
Monohull · long
Rig
Masthead Sloop
LOA
22.75' · 6.93 m
Disp.
5,376 lbs · 2,439 kg
First year
1977

The Samphire 23 is a small sailboat, a lateseventies design from maritime architect David M. Cannell, and only a few were ever built. At just under 23 feet overall with a 17foot9inch waterline, she belongs to a vanishing class of tiny, deeply conservative cruisers whose numbers make every surviving example a minor curiosity rather than a fleet.

Measurements

Dimensions 01

Length Overall
22.75 ft
Length on deck
Waterline Length
17.75 ft
Beam
7.75 ft
Draft
2.92 ft
Maximum Headroom
Air Draft

Construction & hull 02

Construction
Fiberglass
Hull Type
Monohull
Keel Type
Long
Rudder
1× Transom-Hung
Ballast
(Iron)
Displacement
5,376 lbs
Water Capacity
Fuel Capacity

Rig & sails 03

Rigging Type
Masthead Sloop
Mainsail luff
Mainsail foot
Foretriangle height
Foretriangle base
Forestay Length (estimated)
Sail Area
236 sqft

Calculations 04

Sail Area to Displacement Ratio
12.3
Ballast to Displacement Ratio
Displacement to Length Ratio
429.16
Comfort Ratio
28.21
Capsize Screening Ratio
1.77
Hull Speed
5.65 kn

Design and Construction

North Sea Craft laid up the Samphire 23 in solid fiberglass for both hull and deck, with iron ballast carried in a long keel. The proportions tell the story: a beam of 7 feet 9 inches gives an length-to-beam ratio of 2.94, while a displacement of roughly 5,376 pounds on a 22-foot-9-inch hull produces a displacement-to-length ratio of 429, the figure yachtdatabase.com uses to place her among "ultra heavy cruisers." That mass, paired with about 13 square meters of wetted surface, defines a boat built for steadiness rather than pace. Her capsize screening value of 1.77 and Motion Comfort Ratio of 28.1 reinforce the same character — a short, tubby, reassuringly stable hull whose theoretical maximum hull speed is 5.6 knots and whose immersion rate of about 85 kg per centimeter means she sits heavily and changes trim slowly with load.

Rig and Handling

The Samphire 23 carries a masthead sloop rig, and the period specification calls for 10 mm (3/8 inch) sheets throughout — jib, genoa, mainsheet, and spinnaker all share that dimension, with the mainsheet leading 17.3 meters and the genoa sheets 6.9 meters. The long-keel hull with transom-hung rudder and a draft that runs 2.92 to 3.22 feet depending on load is the sort of arrangement that tracks predictably and forgives incoherent steering, at the cost of nimbleness in tight maneuvers. A sail-area-to-displacement ratio of 12.30 marks her as undercanvased by modern standards — adequate for ghosting along in modest breeze, but never a lively performer.

Accommodations

At 7 feet 9 inches of beam and just under 23 feet overall, the volume is what a small, heavy pocket cruiser of the era would imply, prioritized toward ballast and hull thickness over cabin square footage.

The Verdict

The Samphire 23 is a curiosity — a late-1970s David Cannell design built in tiny numbers by North Sea Craft, whose ultra-heavy displacement and long-keel form make her a stable, slow, and utterly conventional small cruiser. For a buyer who values obscurity and steadiness over speed or space, she is an honest if obscure specimen.

Pros

  • Extremely stable hull form (capsize screening 1.77, comfort ratio 28.1)
  • Simple, robust solid fiberglass construction
  • Forgiving long-keel handling

Cons

  • Very low sail-area-to-displacement ratio (12.30) limits performance
  • Tiny production run means scarce support and spares context

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