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Gori 20x14x3LHS-SD40-60 Folding Propeller – 3-Blade, Ø20", Pitch 14", Left-Hand, for Sail Drive SD40-60
The Gori 20x14x3LHS-SD40-60 is an award-winning 3-blade folding propeller designed for sailing yachts with SD40–60 sail drives. Introduced in 1994, it received both the DAME and HISWA Awards, marking a breakthrough in marine propulsion by combining folding propeller advantages under sail with the thrust of a fixed propeller under power.
Key Features
- Diameter: Ø20"
- Pitch: 14"
- Blades: 3-blade, folding type
- Rotation: Left-hand (LHS)
- Drive Type: Sail Drive (SD40–60)
- Engine Compatibility: 7 kW to 221 kW (10 hp to 300 hp)
- Overdrive Function: Adjustable pitch during forward motion for lower RPMs, reduced noise, and improved fuel economy
- Efficiency: +15% thrust forward and reverse compared to traditional rotary or folding props
- Drag Reduction: Low-profile folded design increases sailing speed
- Debris Resistance: Prevents fouling from seaweed or plastic during sailing
- Material: High-quality Nibral and stainless steel
- Flexible Hub: Acts as a shock absorber and provides electrical isolation for saildrive protection
- Compatibility: Fits sail drives from Bukh, Sonic, Volvo-Penta (50S/100S), Yanmar, and others
- Traceability: Each unit is individually numbered for quality assurance and future service
Performance Under Sail
The folding blades reduce drag significantly when sailing, allowing for increased speed and performance. The propeller's special shape prevents it from opening during sail and avoids entanglement with debris—eliminating the need for additional shaft brakes on hydraulic gearboxes.
Engine Efficiency
Independent tests confirm up to 15% greater efficiency in both forward and reverse compared to other folding or rotary propellers. This is thanks to the optimized curvature and blade rotation, which improve power output even at lower engine speeds.
Engineered for Saildrive Use
The Sail Drive version features a specialized hub that absorbs vibrations and isolates electrical current from the propeller, complying with engine manufacturer standards and ensuring long-term durability and safety.
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