The Barbican 30 is with a steady, comfortable ride offshore.
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 22.8′, the Barbican 30 tops out around 6.4 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √22.8′ 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
50.0%
Race-oriented ballast ratio — very stiff and powerful.
Displacement / Length
378
Heavy displacement — a slow, steady, seakindly hull.
Comfort Ratio
31.3
Good offshore comfort — steady enough for multi-day passages.
Capsize Screening
1.76
Below the 2.0 offshore threshold — acceptable for ocean passages.
Hull Speed
6.4kts
Pounds/Inch Immersion
775lbs
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
31.3
Good offshore comfort — steady enough for multi-day passages.
Under 20 — Snappy, racing motion
20–30 — Acceptable coastal
30–40 — Good offshore comfort
Over 40 — Very comfortable offshore
Capsize Screening Formula
1.76
Below the 2.0 offshore threshold — acceptable for ocean passages.
Under 2.0 — Acceptable for offshore
Over 2.0 — Coastal / protected waters
PHRF Fleet Position
Where the Barbican 30 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Frers 30
Golden Gate 30
How It Compares
Side-by-side with the boats most often cross-shopped against the Barbican 30.
| Barbican 30 | Arcadia 30 Jeanneau | Frers 30 | Golden Gate 30 | Halmatic 30 | Sun Dream 28 Jeanneau | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 29.5 | 29.5 | 29.5 | 29.5 | 29.5 | 29.5 |
| LWL | 22.8 | 24.4 | 26.0 | 22.5 | 22.8 | 24.6 |
| Beam | 9.5 | 10.3 | 10.9 | 9.4 | 9.5 | 10.6 |
| Displacement | 10 | 6 | 6 | 9 | 9 | 5 |
| Ballast | 5 | 2 | 2 | 4 | 4 | 2 |
| Sail Area | — | 378 | 458 | 406 | 430 | 370 |
| Performance | ||||||
| PHRF | — | — | 132 | 246 | — | — |
| SA/Disp | — | 18.0 | 20.3 | 14.8 | 16.0 | 18.1 |
| Bal/Disp | 50.0 | 43.5 | 37.7 | 43.5 | 50.0 | 40.9 |
| Comfort | 31.3 | 16.4 | 16.3 | 29.1 | 27.9 | 15.2 |
| Capsize | 1.76 | 2.26 | 2.30 | 1.80 | 1.83 | 2.34 |
| Hull Speed | 6.4 | 6.6 | 6.8 | 6.4 | 6.4 | 6.6 |