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Sefton Crandall

Pioneer 300
Rotax 912S
AP332F
Whirlwind R68W

Don't seem to have lost any top performance with the extra blade just as you said when I bought the propeller, yet have all the advantages of a three blade propeller.
Fast cruise is 140 knots which is normal.
Extremely happy with the propeller and the Whirlwind blades.

 


Thank you

Sefton

Products specifications
Aircraft Alpi
Engine Rotax 912S
Hub AP332F
Blade Make Whirlwind
Diameter 68in (1727mm)
Power 100HP
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