Austral 30 Specifications
Main Specs
| Length, m | 9.14 |
| Beam, m | 3.1 |
| Draft, m | 1.78 |
Classification
| Hull Type | Fin w/spade rudder |
| Hull Material | GRP |
Rigging and Keel
| Rig | Fractional Sloop |
| Max Draft, m | 1.78 |
Cabins & Passenger Capacity
| Headroom | 1.88 |
Manufacturer Information
| Shipyard | Austral Yachts |
| Country | Australia |
| Period of manufacturing | 1980 - 1980 |
Technical Specs
| LOA, m | 9.14 |
| LWL, m | 7.01 |
| Sail Area (S.A.), m² | 45.89 |
| Ballast, kg | 1724 |
Sailboat Calculations
Hull Speed Max Formula
HS = 1.34 × √LWL (in feet)
The maximum speed of a displacement hull (referring to a hull that travels through the water rather than on top of it, e.g. planing).
HS = 1.34 × √LWL (in feet)
The maximum speed of a displacement hull (referring to a hull that travels through the water rather than on top of it, e.g. planing).
Pounds per Inch Immersion Formula
PPI = LWL Area × 5.333
The weight required to sink the yacht one inch. Calculated by multiplying the LWL area by 5.333 for sea water or 5.2 for fresh water.
PPI = LWL Area × 5.333
The weight required to sink the yacht one inch. Calculated by multiplying the LWL area by 5.333 for sea water or 5.2 for fresh water.
| Hull Speed Max, knots | 6.43 |
| Pounds per Inch Immersion, lbs/inch | 835.79 |
Rig and Sail Particulars
S.A. Fore Formula
S.A. Fore = I * J / 2
This is the area of the fore triangle, calculated by multiplying I and J and dividing by 2.
S.A. Fore = I * J / 2
This is the area of the fore triangle, calculated by multiplying I and J and dividing by 2.
S.A. Main Formula
S.A. Main = P * E / 2
This is the area of the main triangle, calculated by multiplying P and E and dividing by 2.
S.A. Main = P * E / 2
This is the area of the main triangle, calculated by multiplying P and E and dividing by 2.
S.A. Total Formula
S.A. Total = S.A. Fore + S.A. Main
This is the sum of the fore and main sail areas.
S.A. Total = S.A. Fore + S.A. Main
This is the sum of the fore and main sail areas.
Forestay Length Formula
Est. Forestay Length = √(I² + J²)
This is the length of the forestay, calculated using the Pythagorean theorem.
Est. Forestay Length = √(I² + J²)
This is the length of the forestay, calculated using the Pythagorean theorem.
| I, m | 11.28 |
| J, m | 3.61 |
| P, m | 9.91 |
| E, m | 2.9 |
| S.A. Fore, ft²m² | 219.16 20.36 |
| S.A. Main, ft²m² | 154.67 14.37 |
| S.A. Total, ft²m² | 373.83 34.73 |
| Est. Forestay Length, ftm | 38.86 11.84 |
