The Halman Horizon is with acceptable motion comfort for coastal passages.
Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
6.4 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 23.0′, the Halman Horizon tops out around 6.4 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √23.0′ LWL = 6.4 kts
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
Ballast / Displacement
32.1%
Typical cruising ballast — balanced stability and motion underway.
Displacement / Length
257
Moderate-heavy — carries provisions well, deliberate in light air.
Comfort Ratio
21.9
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
2.01
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
Hull Speed
6.4kts
Pounds/Inch Immersion
790lbs
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
21.9
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Under 20 — Snappy, racing motion
20–30 — Acceptable coastal
30–40 — Good offshore comfort
Over 40 — Very comfortable offshore
Capsize Screening Formula
2.01
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 Halman Horizon sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Express 27
Cal 27
Cape Dory 270
How It Compares
Side-by-side with the boats most often cross-shopped against the Halman Horizon.
| Halman Horizon | Cal 27 | Cape Dory 270 | Express 27 | Impala 27 | |
|---|---|---|---|---|---|
| Dimensions | |||||
| LOA | 27.3 | 27.3 | 27.3 | 27.3 | 27.4 |
| LWL | 23.0 | 22.3 | 20.8 | 23.8 | 23.0 |
| Beam | 9.6 | 9.0 | 9.4 | 8.0 | 10.2 |
| Displacement | 7 | 5 | 8 | 2 | 5 |
| Ballast | 2 | 2 | 3 | 1 | 2 |
| Sail Area | — | 350 | 398 | 276 | 397 |
| Performance | |||||
| PHRF | — | 198 | 219 | 137 | — |
| SA/Disp | — | 18.3 | 15.5 | 24.4 | 21.6 |
| Bal/Disp | 32.1 | 50.5 | 38.8 | 44.9 | 43.7 |
| Comfort | 21.9 | 18.8 | 28.8 | 9.6 | 14.7 |
| Capsize | 2.01 | 2.06 | 1.86 | 2.38 | 2.37 |
| Hull Speed | 6.4 | 6.3 | 6.1 | 6.5 | 6.4 |