The Atlantic 40 Rayner is with a gentle bluewater motion.
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 30.0′, the Atlantic 40 Rayner tops out around 7.3 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √30.0′ 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.
Displacement / Length
389
Heavy displacement — a slow, steady, seakindly hull.
Comfort Ratio
45.3
Very comfortable in a seaway — a genuine bluewater motion.
Capsize Screening
1.54
Below the 2.0 offshore threshold — acceptable for ocean passages.
Hull Speed
7.3kts
Pounds/Inch Immersion
7lbs
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
45.3
Very comfortable in a seaway — a genuine bluewater motion.
Under 20 — Snappy, racing motion
20–30 — Acceptable coastal
30–40 — Good offshore comfort
Over 40 — Very comfortable offshore
Capsize Screening Formula
1.54
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 Atlantic 40 Rayner sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Freedom 40 Cc
Dickerson 40
How It Compares
Side-by-side with the boats most often cross-shopped against the Atlantic 40 Rayner.
| Atlantic 40 Rayner | Bermuda 40 3 Hinckley | Dickerson 40 | Freedom 40 Cc | Nicholson 40 Ac | Tartan 40 Offshore | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 40.0 | 40.0 | 40.0 | 40.0 | 40.0 | 40.0 |
| LWL | 30.0 | 28.8 | 30.4 | 35.0 | 30.5 | 36.0 |
| Beam | 11.0 | 11.8 | 12.0 | 12.0 | 11.5 | 13.3 |
| Displacement | 23 | 20 | 18 | 20 | 24 | 26 |
| Ballast | — | 6 | 5 | 5 | — | 10 |
| Sail Area | — | 681 | 600 | 784 | 940 | 788 |
| Performance | ||||||
| PHRF | — | — | 197 | 170 | — | — |
| SA/Disp | — | 14.8 | 14.0 | 17.1 | 17.9 | 14.4 |
| Bal/Disp | — | 32.5 | 31.1 | 27.7 | — | — |
| Comfort | 45.3 | 36.1 | 30.5 | 30.9 | 43.8 | 34.3 |
| Capsize | 1.54 | 1.73 | 1.83 | 1.77 | 1.59 | 1.80 |
| Hull Speed | 7.3 | 7.2 | 7.4 | 7.9 | 7.4 | 8.0 |