The Xc 47 is with acceptable motion comfort for coastal passages.
Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
8.8 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 43.2′, the Xc 47 tops out around 8.8 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √43.2′ LWL = 8.8 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
37.9%
Typical cruising ballast — balanced stability and motion underway.
Displacement / Length
177
Moderate — a good balance of speed and load-carrying ability.
Comfort Ratio
29.8
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
1.89
Below the 2.0 offshore threshold — acceptable for ocean passages.
Hull Speed
8.8kts
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
29.8
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Under 20 — Snappy, racing motion
20–30 — Acceptable coastal
30–40 — Good offshore comfort
Over 40 — Very comfortable offshore
Capsize Screening Formula
1.89
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 Xc 47 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Dufour 48
How It Compares
Side-by-side with the boats most often cross-shopped against the Xc 47.
| Xc 47 | Baltic 50 | Dufour 48 | Shogun 50 | St Francis 500 | Sun Odyssey 49I Perf Jeanneau | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 49.9 | 50.0 | 50.2 | 50.0 | 50.0 | 50.2 |
| LWL | 43.2 | 43.6 | 40.1 | 46.6 | — | 43.6 |
| Beam | 15.0 | 14.2 | 15.9 | 12.7 | 26.3 | 15.1 |
| Displacement | 31 | 20 | 30 | 17 | 31 | 30 |
| Ballast | 12 | 9 | 8 | 7 | — | 10 |
| Sail Area | — | 1 | 1 | 1 | 1 | 1,238 |
| Performance | ||||||
| PHRF | — | — | 129 | — | — | — |
| SA/Disp | — | 28.5 | 20.5 | 34.7 | 23.8 | 20.1 |
| Bal/Disp | 37.9 | 43.9 | 27.7 | 45.6 | — | 35.0 |
| Comfort | 29.8 | 20.3 | 27.6 | 19.1 | — | — |
| Capsize | 1.89 | 2.09 | 2.04 | 1.97 | — | — |
| Hull Speed | 8.8 | 8.9 | 8.5 | 9.2 | — | — |