The Sundance 13 is with a quick, snappy motion best suited to day sailing.
Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
4.3 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
Displacement / Length
81
Ultralight — responsive and fast, but carries less stores.
Comfort Ratio
3.4
Quick, snappy motion — better for day sails and racing than long passages.
Hull Speed
4.3kts
Pounds/Inch Immersion
1lbs
Weight needed to sink the hull one inch — loading sensitivity.
Motion & Offshore Suitability
Two ratios that matter most when you're planning passages — how the boat feels in a seaway, and whether the hull geometry is suitable for open ocean.
Comfort Ratio
3.4
Quick, snappy motion — better for day sails and racing than long passages.
Under 20 — Snappy, racing motion
20–30 — Acceptable coastal
30–40 — Good offshore comfort
Over 40 — Very comfortable offshore
How It Compares
Side-by-side with the boats most often cross-shopped against the Sundance 13.
| Sundance 13 | Butterfly | Chipmunk | Howmar 12 | Oday 12 | Sunchaser I | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 12.3 | 12.0 | 12.0 | 12.2 | 12.3 | 12.0 |
| LWL | — | — | — | 10.4 | 11.5 | — |
| Beam | 5.0 | 4.5 | 3.8 | 5.0 | 5.0 | 4.7 |
| Displacement | 205 | 137 | 98 | 175 | 243 | 125 |
| Sail Area | — | 75 | 56 | 90 | 75 | 72 |
| Performance | ||||||
| SA/Disp | — | 45.2 | 42.2 | 46.1 | 30.8 | — |
| Comfort | 3.4 | 2.6 | 2.3 | 2.9 | 3.7 | 2.3 |
| Capsize | — | 3.49 | 3.32 | 3.58 | 3.21 | — |
| Hull Speed | 4.3 | 4.3 | 4.3 | 4.3 | 4.5 | 4.3 |