Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
6.4 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 23.0′, the Austral 30 tops out around 6.4 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √23.0′ LWL = 6.4 kts
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
Hull Speed
6.4kts
Pounds/Inch Immersion
836lbs
Weight needed to sink the hull one inch — loading sensitivity.
PHRF Fleet Position
Where the Austral 30 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Moore 30
Capri 30 Catalina
Mirage 30 Sx
J/30
Cs 30
How It Compares
Side-by-side with the boats most often cross-shopped against the Austral 30.
| Austral 30 | Capri 30 Catalina | Cs 30 | J/30 | Mirage 30 Sx | Moore 30 | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 30.0 | 30.0 | 30.0 | 30.0 | 30.0 | 30.0 |
| LWL | 23.0 | 25.0 | 25.4 | 25.0 | 24.1 | 26.3 |
| Beam | 10.2 | 10.8 | 10.3 | 10.8 | 10.5 | 14.0 |
| Displacement | — | 8 | 8 | 6 | 5 | 2 |
| Ballast | 3 | 3 | 3 | 2 | — | 800 |
| Sail Area | 494 | 387 | 462 | 436 | 474 | 466 |
| Performance | ||||||
| PHRF | — | 111 | 150 | 144 | 120 | 51 |
| SA/Disp | — | 15.5 | 18.5 | 20.8 | 23.3 | 47.1 |
| Bal/Disp | — | 37.5 | 43.0 | 39.3 | — | 40.0 |
| Comfort | — | 12.0 | 20.8 | 23.6 | 15.4 | 3.4 |
| Capsize | — | 2.62 | 2.05 | 1.73 | 2.33 | 4.45 |
| Hull Speed | 6.4 | 6.6 | 6.8 | 7.6 | 6.6 | 6.9 |