The Nacra 570 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.
5.3 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
41
Ultralight — responsive and fast, but carries less stores.
Comfort Ratio
2.1
Quick, snappy motion — better for day sails and racing than long passages.
Capsize Screening
4.50
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
Hull Speed
5.3kts
Pounds/Inch Immersion
3lbs
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
2.1
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
Capsize Screening Formula
4.50
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
Under 2.0 — Acceptable for offshore
Over 2.0 — Coastal / protected waters
How It Compares
Side-by-side with the boats most often cross-shopped against the Nacra 570.
| Nacra 570 | G Cat 57 | Macgregor 19 | Mirage Tandem Island Hobie | Pacific Catamaran | Sol Cat 18 | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 18.5 | 18.7 | 18.8 | 18.5 | 18.8 | 18.3 |
| LWL | — | 17.5 | 17.0 | — | 17.9 | 18.0 |
| Beam | 8.0 | 8.0 | 7.4 | 10.0 | 7.9 | 7.9 |
| Displacement | 360 | 360 | 2 | 240 | 500 | 330 |
| Ballast | — | — | 800 | — | — | — |
| Sail Area | 230 | 235 | — | 90 | 270 | — |
| Performance | ||||||
| SA/Disp | — | 74.4 | — | 37.3 | — | — |
| Bal/Disp | — | — | 39.0 | — | — | — |
| Comfort | 2.1 | 1.9 | — | — | 2.7 | 1.8 |
| Capsize | 4.50 | 4.50 | — | — | 3.99 | 4.59 |
| Hull Speed | 5.3 | 5.6 | — | — | 5.7 | 5.7 |