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Cc 121
Designer: Tim Jackett  ·  Builder: C&C Yachts  ·  First built: 1999
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About the Cc 121

Designed by Tim Jackett and built by C&C Yachts starting in 1999, this 40-footer represents a modern approach to performance cruising. The Cc 121 combines the thoughtful design elements that made C&C a respected name in sailing with contemporary construction techniques, featuring a vinylester and Corecell E-glass hull reinforced with Kevlar for strength and durability. With its fin keel and bulb configuration paired with a spade rudder, the boat delivers responsive handling and good upwind performance. The generous sail area and moderate displacement create a lively sailing character that appeals to sailors who enjoy spirited coastal cruising and weekend racing. The masthead sloop rig provides versatility for various wind conditions while remaining manageable for shorthanded sailing. The relatively low comfort ratio of 19.27 indicates this yacht leans toward performance over pure comfort, making it well-suited for sailors who prioritize sailing ability. The capsize screening formula of 2.17 suggests reasonable offshore capability, though the boat truly excels in coastal waters where its speed and agility can be fully appreciated. Tim Jackett's design philosophy shines through in the balanced proportions that create an engaging sailing experience without sacrificing the practical amenities needed for extended cruising adventures.

Core Dimensions
LOA (Length Overall) 40.00 ft / 12.19 m
LWL (Waterline Length) 35.50 ft / 10.82 m
Beam 13.08 ft / 3.99 m
Max Draft 6.50 ft / 1.98 m
Displacement 14,100.00 lb / 6,396 kg
Ballast 5,500.00 lb / 2,495 kg
Ballast Type Lead
Sail Area (Reported) 846.00 ft² / 78.60 m²
Design & Construction
Hull Type Fin w/bulb & spade rudder
Rigging Type Masthead Sloop
Construction vinylester.-corecell Eglass/w kev.
Designer Tim Jackett
Builder C&C Yachts
First Built 1999
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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
 23.28
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
 39.01
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
 140.7
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
 19.27
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
 2.17
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. 7.98 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
 4.37
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. 1,659.14 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. 23.22
Rig Dimensions
I (Foretriangle Height) 57.00 ft / 17.37 m
J (Foretriangle Base) 15.00 ft / 4.57 m
P (Mainsail Luff) 51.00 ft / 15.54 m
E (Mainsail Foot) 16.33 ft / 4.98 m
SPL/TPS 17.00 ft / 5.18 m
SA Fore 427.50 ft² / 39.72 m²
SA Main 416.42 ft² / 38.69 m²
SA Total (100%) 843.92 ft² / 78.40 m²
Est. Forestay Length 58.94 ft / 17.96 m
Engine & Accommodations
Engine Make Volvo
Engine Model MD 2040
Engine Type Diesel
Horsepower 38
Fuel Capacity 35 gals / 132 L
Water Capacity 80 gals / 303 L
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