3 Blade Compuflow

3 Blade Compuflow

Product code

Product Description

Using extensive research and development, CAD/CAM computer equipment and “on water” testing, Austral has developed the all new CompuFlow three bladed propeller range. This design incorporates a larger blade area than many of our competitor’s products which has conclusively proven superior for improved efficiency and performance.

These larger blade area CompuFlowpropellers provide efficient transmission of thrust from the engine to the propeller jet stream therefore minimizing the slippage commonly associated with average three blade propellers. The design is also suitable for commercial users who wish to optimize their boat’s overall performance. CompuFlow propellers are made from fully CNC machined patterns ensuring geometric accuracy and therefore smoothness of operation.

CompuFlow 3B propellers are available from 14″ – 52″ diameter, in both right and left hand rotation and in an extensive range of pitch sizes.

Design Features: Performance Advantages:
* CAD/CAM computer developed * Optimum small sportcruiser performance
* Patterns fully CNC machined * Larger blades – means higher thrust transmission,
* Large blades for efficiency    less slip and cavitation
* Varying pitch distribution * Rapid acceleration across full RPM range
* Disc Area Ratio = 0.60 maximum * Smoothness through geometric accuracy of manufacturing methods.
* Electronically balanced  
* Individually pitchometer checked  
* Cast in Nibral or Manganese Bronze  
* Super Cup design also (Nibral only)
downloads section
3 Blade Compuflow Design Data Maximum Disc Area Ratio = 0.60
Diameter
inch mm
Approximate Standard Hub Sizes
Large Diameter
inch mm
Length
inch mm
Maximum bore sizes
Standard Hub
inch mm
Maximum Total
Blade Area
Sq inch Sq cm
Approx. Weight
in kg's
*14" - 17" *356 - 432
18" 457
2.37" 60 3.25" 83
1.50" 38.1
153 987
10
19" 483
2.50" 64 4.12" 105
1.50" 38.1
170 1096
12
20" 508
2.50" 64 4.12" 105
1.50" 44.4
188 1212
13
21" 533
3.00" 76 4.50" 114
1.75" 44.4
207 1335
15
22" 559
3.00" 76 4.50" 114
1.75" 44.4
228 1470
17
23" 584
3.37" 86 4.50" 114
2.00" 50.8
249 1606
19
24" 610
3.37" 86 4.50" 114
2.00" 50.8
271 1748
21
25" 635
3.37" 86 5.25" 133
2.00" 50.8
294 1896
23
26" 660
3.37" 86 5.25" 133
2.00" 50.8
318 2051
25
27" 686
3.75" 95 6.00" 152
2.25" 57.1
343 2212
29
28" 711
3.75" 95 6.00" 152
2.25" 57.1
369 2380
32
30" 762
4.25" 108 6.50" 165
2.50" 63.5
424 2735
36
32" 813
4.62" 117 7.25" 184
2.75" 69.9
482 3109
46
34" 864
5.00" 127 7.50 - 9.00" 190 - 229
3.00" 76.2
544 3509
56
36" 914
5.33" 135 7.50 - 9.25" 190 - 235
3.25" 82.5
610 3935
66
38" 965
5.33" 135 7.50 - 9.25" 190 - 235
3.25" 82.5
680 4387
74
40" 1016
6.00" 152 7.75 - 9.75" 197 - 248
3.75" 95.2
754 4864
90
42" 1067
6.00" 152 7.75 - 9.75" 197 - 248
3.75" 95.2
831 5361
96
44" 1118
6.50" 165 8.00-10.00" 203 - 254
4.00" 101.6
912 5883
107
46" 1168
6.50" 165 8.00-10.00" 203 - 254
4.00" 101.6
997 6433
117
48" 1219
7.12" 181 8.50 -10.50" 216 - 267
4.25" 108.0
1085 7002
137
Available in both right and left hand rotation in an extensive range of pitch sizes.
* 14"-17" 3B CompuFlow also available.
NB - Our traditional range of Powerflow propellers, with a maximum disc area ratio of 0.55, are also available from 10" - 13" diameter, in both left and right hand rotation and in an extensive range of pitch sizes.