Austral 30 Specifications

Main Specs
Length, m 9.14
Beam, m 3.10
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 1724.00
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).
× 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.
Hull Speed Max, knots 6.43ℹ️
Pounds per Inch Immersion, lbs/inch 835.79ℹ️
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. 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. Total Formula
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.
I, m 11.28
J, m 3.61
P, m 9.91
E, m 2.90
S.A. Fore, 20.36 ℹ️
S.A. Main, 14.37 ℹ️
S.A. Total, 34.73 ℹ️
Est. Forestay Length, m 11.84 ℹ️