The Trailertri 680 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.
6.1 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 20.4′, the Trailertri 680 tops out around 6.1 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √20.4′ LWL = 6.1 kts
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
131
Ultralight — responsive and fast, but carries less stores.
Comfort Ratio
4.4
Quick, snappy motion — better for day sails and racing than long passages.
Capsize Screening
4.81
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
Hull Speed
6.1kts
Pounds/Inch Immersion
7lbs
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
4.4
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
Capsize Screening Formula
4.81
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
PHRF Fleet Position
Where the Trailertri 680 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Tanzer 22
Menger Cat 23
How It Compares
Side-by-side with the boats most often cross-shopped against the Trailertri 680.
| Trailertri 680 | J22 | Menger Cat 23 | Spider 22 | Tanzer 22 | Thom Cat 23 | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 22.3 | 22.5 | 22.5 | 22.3 | 22.5 | 22.5 |
| LWL | 20.4 | 19.0 | 21.3 | 20.5 | 19.8 | 21.3 |
| Beam | 16.3 | 8.0 | 10.0 | 8.1 | 7.8 | 10.0 |
| Displacement | 2 | 1 | 6 | 1 | 2 | 6 |
| Ballast | — | 700 | — | 518 | 1 | — |
| Sail Area | — | 223 | — | — | — | 435 |
| Performance | ||||||
| PHRF | — | — | 345 | — | 246 | — |
| SA/Disp | — | 24.3 | — | — | — | 20.0 |
| Bal/Disp | — | 39.1 | — | 35.1 | 43.1 | — |
| Comfort | 4.4 | 8.6 | — | — | — | 21.6 |
| Capsize | 4.81 | 2.64 | — | — | — | 2.15 |
| Hull Speed | 6.1 | 5.8 | — | — | — | 6.2 |