Seahawk - Autostream Feathering Propellers

Why Choose an Autostream?

Superior sailing and motoring performance
Unmatched control in reverse
Easy maintenance—even underwater
Rugged construction built to last
Best all-round value for cruising sailors

To find the best fit for your yacht, complete our propeller enquiry form with as many details as you have on hand. We promise we don't do mailouts and we will never use your email outside of direct communication.

Prop Enquiry Form

Sail Faster With

Drag Free Sailing

Autostream propeller blades automatically rotate to present a narrow edge to the water under sail, reducing drag and increasing speed.
10–15% faster than fixed-blade propellers
Ideal for light winds and performance sailing
Switch between forward and reverse with full control
Blades rotate 180° for equal thrust in both directions, reducing ‘prop walk’
Large blade area ensures strong propulsion without sacrificing sailing speed
Ultra-thin blade design minimises drag
No shaft brake needed—blades stay feathered at over 25 knots
Less turbulence over rudder improves helm feel.
Reduced drag means better upwind performance.

Autostream lets you hold a tighter course, helping you get to your destination — or the finish line —quicker.

Built to last with

Superior Engineering

Independent pitch adjustment for forward and reverse settings
Adjust pitch in water with a simple screw & locknut system—no disassembly needed
Prop sizes: 15"–20" (380–510mm)
Shaft sizes up to 1.5” / 40mm (custom bores available)
Made from 316L and 2507 Super Duplex stainless steel
O-ring seals retain grease and extend service intervals
Replaceable bearings
Two bearings per blade for smoother operation and extended life
Lockwired assembly screws for added safety
Zinc anode with stainless core for long-lasting electrolysis protection
Easy greasing with permanent grease nipple and zinc fitting
Sail drive model has a fail safe cushion, designed to be user-replaced
5-Year Warranty for peace of mind