The Rc 30 is with a quick, snappy motion best suited to day sailing.
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 Rc 30 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
15
Ultralight — responsive and fast, but carries less stores.
Comfort Ratio
1.1
Quick, snappy motion — better for day sails and racing than long passages.
Capsize Screening
6.63
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
Hull Speed
7.3kts
Pounds/Inch Immersion
10lbs
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
1.1
Quick, snappy motion — better for day sails and racing than long passages.
Under 20 — Snappy, racing motion
20–30 — Acceptable coastal
30–40 — Good offshore comfort
Over 40 — Very comfortable offshore
Capsize Screening Formula
6.63
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
Under 2.0 — Acceptable for offshore
Over 2.0 — Coastal / protected waters
PHRF Fleet Position
Where the Rc 30 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Melges 30
How It Compares
Side-by-side with the boats most often cross-shopped against the Rc 30.
| Rc 30 | Melges 30 | |
|---|---|---|
| Dimensions | ||
| LOA | 31.8 | 31.8 |
| LWL | 30.0 | 28.5 |
| Beam | 16.0 | 9.8 |
| Displacement | 900 | 3 |
| Ballast | — | 1 |
| Performance | ||
| PHRF | — | 42 |
| Bal/Disp | — | 42.1 |
| Comfort | 1.1 | — |
| Capsize | 6.63 | — |
| Hull Speed | 7.3 | — |