ID
1346246
$ 10,356.49
1-2 weeks delivery time
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The Max-Prop Boomerang 101 / 5 Blade 21" Spinner 101mm automatically shifts blades into shaft position when torque is removed, reducing drag for modern sailboats. Its integrated radial spring package ensures blades are in vane position at idle or off, offering high efficiency, up to 80% more reverse power, low drag, easy installation, and wide shaft compatibility.
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Max Prop Boomerang 101 / 5 Blade 21" Spinner 101mm
Advanced Shaft Position Propeller
The Max-Prop Boomerang is an advanced shaft-position propeller that automatically moves into the shaft position as soon as no torque is applied to the propeller shaft. This is essential for modern sailboats with hydraulic transmissions, where the shaft has virtually no resistance when the engine is not running.
Unique Patented Technology
Max-Prop engineers have developed a patented radial spring package integrated into the body of the Boomerang model. This spring system automatically pushes the blades into the default vane position when the engine is idling or switched off, independent of shaft rotation or boat speed.
Key Features
- Automatic vane position thanks to the integrated spring package
- High efficiency with smooth operation using the anti-shock principle
- Excellent braking power with up to 80% more reverse power than fixed blades
- Low drag design for increased speed under sail
- Easy bolt-on installation without complex adjustments
- External pitch adjustment without disassembly
- Wide application range for shafts from ø35mm to 100mm and ø1 ¼” to 3 ½”
- Stable ground clearance at high speeds and in turbulent flows
Technical Data
Material Nikkel Aluminium Bronze (Ni.Al.Br.) Number Of Blades 5 Series Boomerang Pitch 21" Sales Unit 1 Piece
Brand: Max Prop (Article code: 785510121) (Barcode: 8720193063904)
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