The Windrush 25 Westerly 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.
6.1 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 21.0′, the Windrush 25 Westerly tops out around 6.1 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √21.0′ 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.
Comfort Ratio
23.2
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
1.76
Below the 2.0 offshore threshold — acceptable for ocean passages.
Hull Speed
6.1kts
Pounds/Inch Immersion
557lbs
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
23.2
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
1.76
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 Windrush 25 Westerly sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Coronado 25
South Coast 25
Bayfield 25
How It Compares
Side-by-side with the boats most often cross-shopped against the Windrush 25 Westerly.
| Windrush 25 Westerly | Bayfield 25 | Coronado 25 | South Coast 25 | Tiger 25 Westerly | Westerly 25 | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 25.1 | 25.0 | 25.0 | 25.0 | 25.1 | 25.1 |
| LWL | 21.0 | 19.7 | 20.1 | 20.5 | 21.8 | 21.0 |
| Beam | 7.4 | 8.0 | 8.0 | 7.5 | 8.8 | 7.4 |
| Displacement | 4 | 3 | 4 | 4 | 5 | 4 |
| Ballast | 1 | 1 | 2 | 1 | 2 | 1 |
| Sail Area | — | 240 | 299 | 299 | 318 | 275 |
| Performance | ||||||
| PHRF | — | 261 | 231 | 258 | — | — |
| SA/Disp | — | 16.7 | 17.6 | 18.4 | 16.9 | 17.5 |
| Bal/Disp | — | 37.1 | 47.8 | 42.9 | — | — |
| Comfort | 23.2 | 15.9 | 20.2 | 20.3 | 19.8 | 19.3 |
| Capsize | 1.76 | 2.11 | 1.94 | 1.86 | 2.01 | 1.87 |
| Hull Speed | 6.1 | 5.9 | 6.0 | 6.1 | 6.3 | 6.1 |