Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
5.9 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 19.3′, the Northern 25 tops out around 5.9 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √19.3′ LWL = 5.9 kts
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
PHRF Rating
225s/nm
Heavy or slow cruiser — all about the journey, not the elapsed time.
Ballast / Displacement
45.1%
Race-oriented ballast ratio — very stiff and powerful.
Displacement / Length
319
Moderate-heavy — carries provisions well, deliberate in light air.
Hull Speed
5.9kts
Pounds/Inch Immersion
3lbs
Weight needed to sink the hull one inch — loading sensitivity.
PHRF Fleet Position
Where the Northern 25 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Tanzer 25
Northern 25
Heavy or slow cruiser — all about the journey, not the elapsed time.
San Juan 26
How It Compares
Side-by-side with the boats most often cross-shopped against the Northern 25.
| Northern 25 | Cal 2 25 | Cc 25 | Contessa 25 Peterson | San Juan 26 | Tanzer 25 | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 25.3 | 25.3 | 25.2 | 25.2 | 25.1 | 25.3 |
| LWL | 19.3 | 22.0 | 20.7 | 21.0 | 21.7 | 21.8 |
| Beam | 8.2 | 9.0 | 8.6 | 9.4 | 8.0 | 9.6 |
| Displacement | 5 | 4 | 4 | 4 | 4 | 4 |
| Ballast | 2 | 2 | 1 | 2 | 2 | 1 |
| Sail Area | — | 314 | 306 | 350 | — | — |
| Performance | ||||||
| PHRF | 225 | — | — | — | 240 | 180 |
| SA/Disp | — | 18.5 | 18.6 | 20.3 | — | — |
| Bal/Disp | 45.1 | 44.4 | 44.2 | 45.7 | 45.5 | 39.3 |
| Comfort | — | 16.2 | 17.2 | 16.1 | — | — |
| Capsize | — | 2.18 | 2.11 | 2.27 | — | — |
| Hull Speed | — | 6.3 | 6.1 | 6.1 | — | — |