The Little Harbor 58 is with a gentle bluewater motion.
Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
9.3 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 47.8′, the Little Harbor 58 tops out around 9.3 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √47.8′ LWL = 9.3 kts
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
Comfort Ratio
49.3
Very comfortable in a seaway — a genuine bluewater motion.
Capsize Screening
1.60
Below the 2.0 offshore threshold — acceptable for ocean passages.
Hull Speed
9.3kts
Pounds/Inch Immersion
2lbs
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
49.3
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
1.60
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 Little Harbor 58 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Swan 59
How It Compares
Side-by-side with the boats most often cross-shopped against the Little Harbor 58.
| Little Harbor 58 | Baltic 58 | Little Harbor 57 | Oyster 55 | Oyster 56 | Swan 59 | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 58.0 | 58.5 | 56.7 | 56.3 | 57.3 | 58.7 |
| LWL | 47.8 | 47.6 | 47.3 | 45.4 | 47.5 | 48.2 |
| Beam | 16.2 | 16.6 | 16.8 | 15.8 | 16.2 | 16.4 |
| Displacement | 66 | 41 | 54 | 51 | 57 | 62 |
| Ballast | 19 | 18 | 22 | 13 | 17 | 22 |
| Sail Area | — | 1 | 1 | 1 | 1 | — |
| Performance | ||||||
| PHRF | — | — | — | — | — | 21 |
| SA/Disp | — | 21.6 | 17.9 | 18.6 | 15.3 | — |
| Bal/Disp | — | 43.2 | — | — | — | 36.5 |
| Comfort | 49.3 | 30.3 | 39.1 | 41.2 | 43.2 | 45.3 |
| Capsize | 1.60 | 1.91 | 1.78 | 1.70 | 1.68 | 1.66 |
| Hull Speed | 9.3 | 9.2 | 9.2 | 9.0 | 9.2 | 9.3 |