Aquafoil 3B & 4B Propellers

Aquafoil 3B & 4B Propellers

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A modern style propeller specifically designed for commercial use. Compare its efficient shape with those old fashioned “clover leaf” round blade propellers. The “skew back” blade development of Aqua Foil allows the leading edges to slice through the water with ease, as the maximum diameter is not in contact until nearly 70% of the blade width has passed.

The Aqua Foil four blade propeller is designed for applications where maximum power and thrust are required for towing, trawling or pushing. The additional blade ensures smoother operation and combined with the advantages of the modern design, real operational savings can be achieved with greater efficiency under all loaded conditions.

The Aqua Foil three blade propeller is a general purpose commercial propeller where heavy loadings are not encountered. This propeller is an engineered product manufactured to uncompromising standards in design, material, quality and finish…not just made to a price.

Raked Aquafoil 3B & 4B Propellers

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Austral now produces Aqua Foil propellers with aft rake design. Basically this means the maximum diameter of the blade at the tip is tilted back just past the rear face of the propeller hub. This aft rake design normally means a larger diameter propeller can be fitted because of greater aperture available toward rear of boat.

Design Features and Advantages:

  • Heavy duty construction
  • 3 blade for general use
  • Individually pitchometer checked
  • Statically balanced
  • Very modern “skew back” design
  • 4 blade for power and thrust
  • Raked models available
  • Cast in Nibral and Manganese Bronze

3 & 4 BLADE AQUAFOIL DESIGN DATA Disc Area Ratio 3B = 0.47 & 4B = 0.63


3B AQUA FOIL4B AQUA FOIL
Approximate
Standard Hub Sizes
Maximum Total Blade AreaMaximum bore sizes
Standard Hub
Maximum
Total Blade Area
Maximum
Total Blade Area
DiameterLarge DiameterLengthApprox.
Weight
Approx.
Weight
inchmminchmminchmminchmmSq inchSq cmin kg'sSq inchSq cmin kg's
34"8645.00"1277.50 - 9.00"190 - 2283.00"76.2427275551572369063
36"9145.33"1367.50 - 9.25"190 - 2353.25"82.5478308460641413573
38"9655.33"1367.50 - 9.25"190 - 2353.25"82.5533343971714460681
40"10166.00"1527.75 - 9.75"197 - 2483.75"95.2591381382792510993
42"10676.00"1527.75 - 9.75"197 - 2483.75"95.26514200918735632109
44"11186.50"1658.00-10.00"203 - 2544.00"101.671446061049586180129
46"11686.50"1658.00-10.00"203 - 2544.00"101.6781503911810476755140
48"12197.12"1818.50-10.50"216 - 2674.25"108.0851549013511407355163
50"12707.12"1818.50-10.50"216 - 2674.25"108.0923595515912377980191
52"13207.75"1978.75-10.75"222 - 2734.50"114.3998643917313388632218
54"13727.75"1978.75-10.75"222 - 2734.50"114.31076694219114439310245
56"14228.50"2169.25-11.50"235 - 2925.00"127.011587471209155210013272
58"14738.50"2169.25-11.50"235 - 2925.00"127.012428073231166410735304
60"15249.25"2359.50-11.75"241 - 2985.50"139.713298574246178111490336
62"15759.25"2359.50-11.75"241 - 2985.50"139.714199155263190212271352
64"162610.00"25410.00-13.00"254 - 3306.00"152.415129755295202613071381
66"167610.00"25410.00-13.00"254 - 3306.00"152.4160810374329215513903422
68"172711.75"29812.00-15.00"305 - 3817.00"177.8170711013372228814761477
70"177811.75"29812.00-15.00"305 - 3817.00"177.8180911671440242515645536
72"182911.75"29812.00-15.00"305 - 3817.00"177.8191412348540256516548606