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Robb 35
Designer: Arthur Robb  ·  Builder: Cheoy Lee Shipyard Ltd.(Hk)  ·  First built: 1961
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About the Robb 35

Designed by renowned naval architect Arthur Robb and built by Hong Kong's Cheoy Lee Shipyard beginning in 1961, this 35-footer represents classic offshore cruising philosophy from sailing's golden era. The traditional long keel configuration and substantial displacement of 14,880 pounds create a seaworthy platform that tracks beautifully and handles heavy weather with confidence. With its masthead sloop rig carrying 587 square feet of sail area, the Robb 35 prioritizes stability and comfort over raw speed. The impressive comfort ratio of 39.01 indicates exceptional motion characteristics in a seaway, while the conservative capsize screening value of 1.63 reflects the inherent safety margin built into this design. These qualities make it ideally suited for serious offshore passage-making and extended coastal cruising. The wooden construction from Cheoy Lee's skilled craftsmen ensures both beauty and longevity when properly maintained. At 35.50 feet overall with a 24-foot waterline, this design offers generous interior accommodations while maintaining manageable size for a couple or small crew. The moderate sail area-to-displacement ratio of 15.58 suggests predictable, forgiving sailing characteristics that build confidence in challenging conditions. For sailors seeking a traditional, well-proven bluewater cruiser with classic lines and proven seaworthiness, the Robb 35 delivers time-tested performance.

Core Dimensions
LOA (Length Overall) 35.50 ft / 10.82 m
LWL (Waterline Length) 24.00 ft / 7.32 m
Beam 10.00 ft / 3.05 m
Max Draft 4.67 ft / 1.42 m
Displacement 14,880.00 lb / 6,749 kg
Ballast 4,700.00 lb / 2,132 kg
Ballast Type Iron
Sail Area (Reported) 587.00 ft² / 54.53 m²
Design & Construction
Hull Type Long Keel
Rigging Type Masthead Sloop
Construction Wood
Designer Arthur Robb
Builder Cheoy Lee Shipyard Ltd.(HK)
First Built 1961
Associations Cheoy Lee Association Web Site
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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
 15.58
Ballast/Displacement Ballast to Displacement ratio shows what percentage of the boat's total weight is ballast. Higher values generally mean better initial stability and stiffer sail carrying.
30–35% — Typical cruiser35–45% — Stiff performance boatOver 45% — Racing oriented
 31.59
Displacement/Length Displacement to Length ratio measures how heavy a boat is relative to its waterline length. Lower values mean a lighter, faster boat.
Under 100 — Ultralight racer100–200 — Light cruiser/racer200–300 — Moderate cruiser300–400 — Heavy cruiserOver 400 — Very heavy
 480.53
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
 39.01
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
 1.63
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 kn
S# (Speed Number) The Speed Number (S#) is a quick performance index. Higher values indicate a faster, more powerful design relative to its size.
Under 3.0 — Slow cruiser3.0–5.0 — Average cruiser5.0–7.0 — Performance cruiserOver 7.0 — Racer
 0.74
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. 857.55 pounds/inch
SA/Displacement (Calc) Calculated Sail Area to Displacement ratio using actual measured sail dimensions rather than reported values. More precise than the reported SA/Disp figure. 15.48
Rig Dimensions
I (Foretriangle Height) 41.00 ft / 12.50 m
J (Foretriangle Base) 14.00 ft / 4.27 m
P (Mainsail Luff) 37.00 ft / 11.28 m
E (Mainsail Foot) 16.00 ft / 4.88 m
SA Fore 287.00 ft² / 26.66 m²
SA Main 296.00 ft² / 27.50 m²
SA Total (100%) 583.00 ft² / 54.16 m²
Est. Forestay Length 43.32 ft / 13.20 m
Engine & Accommodations
Engine Make Universal
Engine Model Atomic 4
Engine Type Gas
Fuel Capacity 30 gals / 114 L
Water Capacity 80 gals / 303 L
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