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Cc 51 Custom
Designer: C&C  ·  Builder: C&C Yachts  ·  First built: 1986
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About the Cc 51 Custom

Built during C&C Yachts' golden era in 1986, this 51-footer represents the Canadian builder's commitment to performance-oriented cruising designs. The Cc 51 Custom combines the racing heritage C&C was famous for with enhanced comfort and cruising capabilities, making it an attractive option for sailors seeking both speed and livability. The boat's impressive waterline length of nearly 44 feet contributes to its theoretical hull speed of 8.88 knots, while the masthead sloop rig provides versatile sail handling options. Its keel/centerboard configuration with spade rudder offers the flexibility of shoal-draft exploration when the board is raised, yet maintains excellent upwind performance with the board down. The substantial ballast-to-displacement ratio indicates strong stability and stiff sailing characteristics. With a moderate comfort ratio of 34.99, the Cc 51 Custom strikes a balance between performance and accommodation space, making it well-suited for extended coastal cruising and offshore passages. The capsize screening value of 1.68 suggests good stability for ocean sailing. C&C's fiberglass construction quality was well-regarded during this period, and these boats have developed a reputation for solid build quality and sailing performance that appeals to experienced cruisers seeking a boat that won't compromise on speed.

Core Dimensions
LOA (Length Overall) 51.75 ft / 15.77 m
LWL (Waterline Length) 43.92 ft / 13.39 m
Beam 13.58 ft / 4.14 m
Max Draft 9.92 ft / 3.02 m
Min Draft 5.92 ft / 1.80 m
Displacement 33,800.00 lb / 15,331 kg
Ballast 13,800.00 lb / 6,260 kg
Design & Construction
Hull Type Keel/CB & spade rudder
Rigging Type Masthead Sloop
Construction FG
Designer C&C
Builder C&C Yachts
First Built 1986
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Performance Ratios
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
 40.83
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
 178.11
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
 34.99
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
 1.68
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. 8.88 kn
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. 2,131.12 pounds/inch
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