The Amazon 37 is with a steady, comfortable ride offshore.
Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
7.8 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 33.5′, the Amazon 37 tops out around 7.8 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √33.5′ LWL = 7.8 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
34.4%
Typical cruising ballast — balanced stability and motion underway.
Displacement / Length
242
Moderate — a good balance of speed and load-carrying ability.
Comfort Ratio
33.3
Good offshore comfort — steady enough for multi-day passages.
Capsize Screening
1.76
Below the 2.0 offshore threshold — acceptable for ocean passages.
Hull Speed
7.8kts
Pounds/Inch Immersion
1lbs
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
33.3
Good offshore comfort — steady enough for multi-day passages.
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 Amazon 37 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Passport 37
Endeavour 37
Pacific Seacraft 37
How It Compares
Side-by-side with the boats most often cross-shopped against the Amazon 37.
| Amazon 37 | Endeavour 37 | Oyster 37 Heritage | Pacific Seacraft 37 | Passport 37 | Valiant 37 | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 37.0 | 37.0 | 37.0 | 36.9 | 37.0 | 37.0 |
| LWL | 33.5 | 30.0 | 31.3 | 27.8 | 29.6 | 31.6 |
| Beam | 12.0 | 11.6 | 12.0 | 10.8 | 11.9 | 11.5 |
| Displacement | 20 | 20 | 14 | 16 | 17 | 17 |
| Ballast | 7 | 8 | 6 | 6 | 6 | 6 |
| Sail Area | — | — | 610 | 618 | 673 | 667 |
| Performance | ||||||
| PHRF | — | 174 | — | 189 | 138 | — |
| SA/Disp | — | — | 16.5 | 15.6 | 16.1 | 16.2 |
| Bal/Disp | 34.4 | 40.0 | — | — | — | 39.4 |
| Comfort | 33.3 | — | 24.9 | 34.0 | 31.1 | 30.6 |
| Capsize | 1.76 | — | 1.97 | 1.72 | 1.84 | 1.79 |
| Hull Speed | 7.8 | — | 7.5 | 7.1 | 7.3 | 7.5 |