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North Sea 24
Designer: Holman & Pye  ·  Builder: Upham's/Tucker Brown &Co.  ·  First built: 1963
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About the North Sea 24

Designed with the rugged conditions of northern European waters in mind, the North Sea 24 is a compact cruising sailboat built to handle challenging coastal and offshore environments. As its name suggests, this vessel was conceived with practicality and seaworthiness at the forefront, making it a capable choice for sailors who encounter unpredictable weather and short, steep chop typical of North Sea sailing conditions. While detailed specifications are limited, the North Sea 24 carries a reputation as a sturdy and seaworthy small cruiser, well-suited to coastal passages and weekend cruising rather than flat-water racing. Its design philosophy prioritizes stability and safety, characteristics that appeal to sailors seeking confidence in open water rather than outright speed. For those researching a first offshore cruiser or a manageable passagemaking boat, the North Sea 24 presents an interesting option. Its compact size keeps maintenance and mooring costs reasonable without sacrificing the robust build quality needed for serious sailing. Prospective buyers would benefit from a thorough survey, as finding detailed documentation on older examples can be challenging given the limited records available.

Core Dimensions
LOA (Length Overall) 31.00 ft / 9.45 m
LWL (Waterline Length) 24.00 ft / 7.32 m
Beam 9.00 ft / 2.74 m
Max Draft 5.58 ft / 1.70 m
Displacement 12,900.00 lb / 5,851 kg
Sail Area (Reported) 437.00 ft² / 40.60 m²
Design & Construction
Hull Type Long keel w/trans. hung rudder
Rigging Type Masthead Sloop
Construction Wood
Designer Holman & Pye
Builder Upham's/Tucker Brown &Co.
First Built 1963
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Known Issues & What to Watch For

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Performance Ratios
SA/Displacement Sail Area to Displacement ratio measures how much sail power a boat has relative to its weight. Higher values mean more performance and speed.
Under 14 — Heavy cruiser, slow14–18 — Cruising sailboat18–22 — Cruiser/racerOver 22 — Performance racer
12.76
Comfort Ratio Ted Brewer's Comfort Ratio predicts how comfortable a boat will feel in offshore conditions. Higher values mean a steadier, more comfortable motion in a seaway.
Under 20 — Uncomfortably rough20–30 — Acceptable coastal30–40 — Good offshore comfortOver 40 — Very comfortable offshore
40.92
Capsize Screening Formula The USHS Capsize Screening Formula estimates offshore capsize risk. Lower is safer — values under 2.0 are considered acceptable for offshore sailing.
Under 2.0 — Safe for offshore2.0–2.2 — Borderline offshoreOver 2.2 — Coastal use recommended
1.54
Hull Speed Hull Speed is the theoretical maximum speed of a displacement hull, calculated from waterline length. Most cruising sailboats reach this speed in moderate conditions. 6.56
Pounds/Inch Immersion Pounds per Inch Immersion (PPI) tells you how much weight is needed to sink the boat one inch. Useful for calculating how additional gear and stores affect waterline. 771.79
How It Compares

vs. Bombay Pilothouse 31, Island Packet 31, Rival 31

This boat Similar boats
Dimensions
LOA
North Sea 24 ★
31.0 ft
Bombay Pilothouse 31
31.0 ft
Island Packet 31
31.0 ft
Rival 31
31.0 ft
LWL
North Sea 24 ★
24.0 ft
Bombay Pilothouse 31
25.6 ft
Island Packet 31
27.8 ft
Rival 31
24.5 ft
Beam
North Sea 24 ★
9.0 ft
Bombay Pilothouse 31
11.0 ft
Island Packet 31
11.6 ft
Rival 31
9.7 ft
Displacement
North Sea 24 ★
12 lbs
Bombay Pilothouse 31
10 lbs
Island Packet 31
11 lbs
Rival 31
11 lbs
Ballast
North Sea 24 ★
Bombay Pilothouse 31
3 lbs
Island Packet 31
4 lbs
Rival 31
4 lbs
Sail Area
North Sea 24 ★
437 sq ft
Bombay Pilothouse 31
419 sq ft
Island Packet 31
530 sq ft
Rival 31
Performance
SA / Displacement (higher = more powerful)
North Sea 24 ★
12.8
Bombay Pilothouse 31
14.3
Island Packet 31
17.2
Rival 31
Ballast / Disp (higher = stiffer)
North Sea 24 ★
Bombay Pilothouse 31
Island Packet 31
40.9 %
Rival 31
40.0 %
Comfort Ratio (higher = more comfortable offshore)
North Sea 24 ★
40.9
Bombay Pilothouse 31
23.9
Island Packet 31
22.6
Rival 31
31.9
Capsize Screening (lower = safer)
North Sea 24 ★
1.54
Bombay Pilothouse 31
2.03
Island Packet 31
2.09
Rival 31
1.73
Displacement / Length (lower = lighter)
North Sea 24 ★
Bombay Pilothouse 31
Island Packet 31
229
Rival 31
339
Hull Speed
North Sea 24 ★
6.6 kts
Bombay Pilothouse 31
6.8 kts
Island Packet 31
7.1 kts
Rival 31
6.6 kts
Speed Number (higher = faster)
North Sea 24 ★
Bombay Pilothouse 31
1.6
Island Packet 31
2.4
Rival 31
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