C&C 121
C&C Yachts · designed by Tim Jackett · 1999
fin keelMasthead rigged sloopUnited States
The C&C 121 is a 40-foot masthead rigged sloop sailboat designed by Tim Jackett and built by C&C Yachts, first launched in 1999.
General
| Builder | C&C Yachts |
|---|---|
| Designer | Tim Jackett |
| Years built | 1999 |
| Hull type | fin keel |
| Rig type | Masthead rigged sloop |
| Construction | — |
| Origin | United States |
Dimensions
| LOA | 40.00 ft12.19 m |
|---|---|
| LWL | 35.50 ft10.82 m |
| Beam | 13.08 ft3.99 m |
| Draft (max) | 6.50 ft1.98 m |
| Displacement | 14,600 lb6,622 kg |
| Ballast | 6,000 lb2,722 kg |
| Sail Area | 844 ft²78.4 m² |
Design ratios
Computed from the specs above using the standard formulas. Try the sailboat calculators with your own numbers.
SA / Displacement 22.61 Performance / racer — powered up
Ballast / Displacement 41.1 % Higher = stiffer / more sail-carrying power
Displacement / Length 146 Light
Comfort Ratio 19.9 Racing / light coastal
Capsize Screening 2.14 Better suited to coastal use (> 2.0)
Hull Speed 8.0 kn Theoretical max displacement speed
How these numbers are calculated
- SA / Displacement
SA ÷ (Disp ÷ 64)^(2/3)— Power-to-weight. < 16 under-canvassed, 16–20 cruiser, > 20 racer.- Ballast / Displacement
Ballast ÷ Disp × 100— Stability/stiffness. Higher carries sail better.- Displacement / Length
Disp(lt) ÷ (0.01 · LWL)³— < 100 ultralight, 100–200 light, 200–300 moderate, > 300 heavy.- Comfort Ratio (Brewer)
Disp ÷ (0.65 · (0.7·LWL + 0.3·LOA) · Beam^1.33)— Motion in a seaway. Higher = more comfortable offshore.- Capsize Screening
Beam ÷ (Disp ÷ 64)^(1/3)— ≤ 2.0 favored for offshore; > 2.0 better for coastal use.- Hull Speed
1.34 · √LWL— Theoretical max displacement speed in knots.
Estimated price
$55,500 typical range $44,500 – $66,500
⚠ Rough estimate only — not market data. Derived from a simple model based on length and hull age; actual asking prices vary widely with condition, equipment, engine hours and location.
