The Formosa 34 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.
7.3 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 29.5′, the Formosa 34 tops out around 7.3 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √29.5′ LWL = 7.3 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
30.9%
Typical cruising ballast — balanced stability and motion underway.
Displacement / Length
237
Moderate — a good balance of speed and load-carrying ability.
Comfort Ratio
25.4
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
1.99
Below the 2.0 offshore threshold — acceptable for ocean passages.
Hull Speed
7.3kts
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
25.4
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
1.99
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 Formosa 34 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Irwin 34 Ton
Hans Christian 34
How It Compares
Side-by-side with the boats most often cross-shopped against the Formosa 34.
| Formosa 34 | Aloha 34 | Hans Christian 34 | Irwin 34 Ton | Rival 34 | Sea Tiger 34 | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 34.0 | 34.0 | 34.0 | 34.0 | 34.0 | 34.0 |
| LWL | 29.5 | 28.7 | 29.2 | 28.3 | 24.8 | 26.7 |
| Beam | 11.8 | 11.2 | 11.0 | 9.5 | 9.7 | 11.3 |
| Displacement | 13 | 13 | 19 | 9 | 11 | 18 |
| Ballast | 4 | 4 | 7 | 4 | 4 | 4 |
| Sail Area | — | 531 | 676 | 529 | — | — |
| Performance | ||||||
| PHRF | — | — | 201 | 159 | — | — |
| SA/Disp | — | 15.0 | 15.0 | 18.7 | — | — |
| Bal/Disp | 30.9 | 34.6 | 37.1 | 46.3 | 39.5 | — |
| Comfort | 25.4 | 27.9 | 40.2 | 25.0 | — | 38.4 |
| Capsize | 1.99 | 1.88 | 1.64 | 1.78 | — | 1.72 |
| Hull Speed | 7.3 | 7.2 | 7.2 | 7.1 | — | 6.9 |