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2B, 3B, 4B and 5B narrow bladed low drag sailboat propellers

Conventional cruiser type propellers can cause tremendous drag on sailing boats. For this reason we manufacture a range of narrow bladed two, three, four and five blade yacht propellers. These units are available in left and right hand rotation with maximum blade width one quarter of the propeller diameter. This compromise design technique can give quite reasonable performance with auxiliary engines under power and also provide very low drag under sail.

Due to the reduced blade area of these propellers, a two blade should be selected which is about 8% larger in diameter than a normal area three blade or about 4% larger for the three blade yacht model.

Design Features and Advantages:

  • Narrow blades reduce drag when sailing
  • Lower maintenance than folding propellers
  • Relatively inexpensive initial cost
  • Individually pitchometer checked
  • Statically balanced
  • Cast in Nibral
2 BLADE, 3 BLADE, 4 BLADE AND 5 BLADE FIXED SAILBOAT DESIGN DATA
Pitch RangeApproximate Standard Hub SizesMaximum bore sizes
DiameterRight & Left HandLarge DiameterLengthStandard Hub
inchmminchmminchmminchmminchmm
10"2546 to 10152 to 2541.50"382.12"541.00"25.4
11"2796 to 12152 to 3051.50"382.25"571.00"25.4
12"3056 to 13152 to 3301.50"382.25"571.00"25.4
13"3308 to 14203 to 3561.62"412.50"641.125"28.6
14"3568 to 14203 to 3561.62"412.50"641.125"28.6
15"3819 to 14229 to 3562.00"513.12"791.25"31.8
16"4069 to 14229 to 3562.00"513.12"791.25"31.8
17"43210 to 15254 to 3812.12"543.12"791.375"34.9
18"45710 to 15254 to 3812.12"543.12"791.375"34.9
19"48312 to 16305 to 4062.50"644.00"1021.50"38.1
20" 50812 to 16305 to 4062.50"644.00"1021.50"38.1
22" 55914 to 20356 to 5083.00"764.50"1141.75"44.4
24" 61015 to 22381 to 5593.00"764.50"1141.75"44.4
26" 66016 to 24406 to 6103.37"865.25"1332.00"50.8
28" 71118 to 26457 to 6603.75"956.00"1522.25"57.1
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