Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
7.2 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 28.5′, the Cooper 367 tops out around 7.2 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √28.5′ LWL = 7.2 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
39.6%
Stiff enough to carry a big genoa comfortably into moderate breeze.
Displacement / Length
256
Moderate-heavy — carries provisions well, deliberate in light air.
Hull Speed
7.2kts
Pounds/Inch Immersion
7lbs
Weight needed to sink the hull one inch — loading sensitivity.
PHRF Fleet Position
Where the Cooper 367 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Cs 36
Pearson 36 2
Union 36
How It Compares
Side-by-side with the boats most often cross-shopped against the Cooper 367.
| Cooper 367 | Banner 37 | Cs 36 | Pearson 36 2 | Pearson 367 | Union 36 | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 36.6 | 36.6 | 36.5 | 36.5 | 36.4 | 36.7 |
| LWL | 28.5 | 28.8 | 29.3 | 29.6 | 30.0 | 32.0 |
| Beam | 12.0 | 12.0 | 11.5 | 12.3 | 11.5 | 11.3 |
| Displacement | 13 | 13 | 15 | 15 | 17 | 22 |
| Ballast | 5 | 5 | 6 | 5 | 7 | 7 |
| Sail Area | — | 653 | 822 | — | 600 | — |
| Performance | ||||||
| PHRF | — | — | 126 | 138 | — | 180 |
| SA/Disp | — | 18.5 | 21.2 | — | 14.2 | — |
| Bal/Disp | 39.6 | 40.7 | 41.9 | 38.7 | 41.2 | 35.5 |
| Comfort | — | 24.5 | 29.5 | — | 33.1 | — |
| Capsize | — | 2.02 | 1.85 | — | 1.77 | — |
| Hull Speed | — | 7.2 | 7.3 | — | 7.3 | — |