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Slipstream Folding Propellers

Choose FEATHERING for HEAVY DUTY Commercial and Charter use

The latest propeller in the Seahawk line up, first released as a two-blade model July 2003, the SLIPSTREAM range of Geared Folding Sailboat Propellers.

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  • Geared design keeps blades synchronized, allowing the blades to fold back properly regardless of the propeller position, even at low speeds - No crawling into the bilge to position the shaft when racing
  • Sizes from 14 to 18 inches diameter (down to 12 inches as custom)
  • All Stainless Steel construction for superior life using low carbon 316L grade stainless steel. Being a similar metal as most prop shafts it is less likely to promote electrolysis which is the most common cause of prop failure.
  • Large Blade area for excellent thrust, with unique blade geometry resulting in a smoother and more reliable opening of the blades, particularly when shifting into reverse, whilst travelling forward.
  • Ultra High Molecular Weight Polyethylene thrust plates* on either side of the blades prevent metal-to-metal wear of blade on body.
  • Blades pivot on replaceable Nibral bushes*, these can be easily pressed out and replaced, compared to the traditional over sizing or welding/redrilling
  • Easily replaced Polyurethane Bump-Stop Pads reduce the clunk of the blades hitting the stop faces when shifting into forward, plus eliminates the wear on the back of the blades and the body
  • Blade pivot pins* are double screwed* at BOTH ends for increased security of blades
  • All wear components are user-serviceable, self-service kits are available for when the time comes to refurbish the propeller (items with * are included in the kit)
  • Available to suit shafts from 7/8 to 1-1/2 inches diametre
  • Five-year non Commercial/Charter use Warranty against material and manufacturing defects
  • Geared design keeps blades synchronized, allowing the blades to fold back properly regardless of the propeller position, even at low speeds.
  • Sizes from 14 to 18 diameter
  • All Stainless Steel construction for superior life using low carbon 316L grade stainless steel. Being a similar metal as the internal components and shaft of saildrive units, it is less likely to promote electrolysis, the most common cause of prop failure
  • Large Blade area for excellent thrust, with unique blade geometry resulting in a smoother and more reliable opening of the blades, particularly when shifting into reverse, whilst travelling forward.
  • Ultra High Molecular Weight Polyethylene thrust plates* on either side of the blades prevent metal-to-metal wear of blade on body.
  • Blades pivot on replaceable Nibral bushes*, these can be easily pressed out and replaced, compared to the traditional over sizing or welding/redrilling
  • Easily replaced Polyurethane Bump-Stop Pads reduce the clunk of the blades hitting the stop faces when shifting into forward, plus eliminates the wear on the back of the blades and the body
  • Blade pivot pins* are double screwed* at BOTH ends for increased security of blades
  • All wear components are user-serviceable, self-service kits are available for when the time comes to refurbish the propeller (items with * are included in the kit)
  • Saildrive models feature fail-safe cushion hubs, with integrated safety stops.
  • The user can easily replace the cushion hub, although it is unlikely it will ever wear out.
  • Five-year non Commercial/Charter use Warranty against material and manufacturing defects
  • Unique shaft nut and locking screw arrangement prevents the propeller nut from working loose, a traditional problem with saildrives often leading to propeller loss.

Each propeller supplied with:

  • Comprehensive instructions
  • Hex key for pivot pin and locking screws
  • Two types of Loctite to secure all screws and nuts
  • Stainless steel shaft nut and key

Each propeller supplied with:

  • Comprehensive instructions
  • 2 hex keys for pivot pin and locking screws
  • Loctite to secure pivot pin screws
  • Stainless steel locking wire
  • Stainless steel shaft nut and locking screw

Go to the dimensions page


Seahawk Pty Ltd reserves the right to alter, modify, correct or replace and design specifications without prior notice. All dimensions are approximate only.