Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
5.7 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 18.0′, the Devon Coaster tops out around 5.7 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √18.0′ LWL = 5.7 kts
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
Displacement / Length
92
Ultralight — responsive and fast, but carries less stores.
Hull Speed
5.7kts
Pounds/Inch Immersion
3lbs
Weight needed to sink the hull one inch — loading sensitivity.
PHRF Fleet Position
Where the Devon Coaster sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Seal 22
How It Compares
Side-by-side with the boats most often cross-shopped against the Devon Coaster.
| Devon Coaster | Drascombe Longboat | Kingfisher 20 1 | Noelex 22 | Pandora Mk I | Seal 22 | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 21.8 | 21.8 | 21.6 | 21.6 | 21.8 | 21.8 |
| LWL | 18.0 | 17.5 | 19.3 | 17.4 | 18.8 | 18.0 |
| Beam | 7.0 | 6.6 | 6.9 | 7.2 | 6.9 | 7.8 |
| Displacement | 1 | 1 | 2 | 1 | 2 | 2 |
| Ballast | — | — | 1 | 428 | 980 | 800 |
| Sail Area | — | 169 | 177 | 189 | — | 185 |
| Performance | ||||||
| PHRF | — | — | — | — | — | 234 |
| SA/Disp | — | 25.4 | 14.0 | 22.1 | — | 16.6 |
| Bal/Disp | — | — | — | 26.7 | — | — |
| Comfort | — | 7.4 | 17.1 | 9.6 | 14.5 | 12.7 |
| Capsize | — | 2.55 | 1.94 | 2.45 | 2.06 | 2.32 |
| Hull Speed | — | 5.6 | 5.9 | 5.6 | 5.8 | 5.7 |