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racing sailboat propeller / folding / propeller shaft / 2-blade
Slipstream® Austral Propeller


  • Application domain:

    for racing sailboats

  • Technology:


  • Propulsion:

    propeller shaft

  • Number of blades:


  • Other characteristics:

    stainless steel


Seahawk Australia and Austral Propellers have joined forces to bring you the “SLIPSTREAM” range of geared folding sailboat propellers.
For racing and social yachts, streamlining and smoothness of design is of major importance. Unwanted drag under sail can result from the use of two or three bladed fixed propeller installations. Slipstream Folding Sailboat propellers achieves the best of both worlds, providing both smooth flow when sailing and efficient forward and reverse propulsion under power.
Centrifugal force provides easy synchronized opening of the propeller blades when under engine power. Alternatively, under sail, the water flow closes the blades, significantly reducing drag. The gearing avoids the vibration and operational problems commonly associated with one blade moving independently of the other.

Design Features and Advantages:
Synchronized geared opening and closing
Folded position minimizes drag when sailing
Less drag than 2 or 3 blade fixed propellers
Saildrive models feature ‘fail-safe’ cushion hubs
All stainless steel construction
Full installation kit with each propeller
Propeller operates forward or reverse
Propeller design is efficient under power
Both saildrive and inboard styles available
Large blade area for excellent thrust
All wear components are user-serviceable
Five-year warranty against material & manufacturing defects