Gori folding propeller 3-bladed 16.5x11x3RHS Sail-Drive, rotary wing propeller, overdrive function for maximum thrust

The 3-bladed Gori folding propeller was launched in 1994 and won the DAME Award and HISWA Award for Best New Marine Product in the same year.

The 3-bladed Gori folding propeller marks a technological and functional advance in propeller development for sailing yachts. Now, both larger sailing yachts and motorsailers can achieve the speed advantages of a folding propeller under sail combined with the thrust of a fixed-pitch propeller under power.

The unique design of the 3-bladed Gori folding propeller's blade curvature creates excellent forward thrust, and the rotation of the blades also achieves the same power in reverse, providing more power and better maneuverability than almost any other propeller.

'Overdrive' function

The overdrive function of the 3-bladed Gori folding propeller adds a new dimension to motoring. The helmsman can change the pitch and profile of the propeller while moving forward. This is controlled via the boat's single-lever control, without the use of delicate hydraulics or complicated mechanics.

The overdrive is used under the engine in calm weather or when motoring under sail. The overdrive provides the same speed at a lower rpm. This means less engine noise, less vibration, and reduced fuel consumption.

The function is simple. To go from normal forward to overdrive, shift from neutral to reverse. The boat must be moving significantly backward, then shift back to forward. To go from overdrive back to normal forward, shift the gearshift to neutral, the propeller folds, and then shift back to forward.

The “overdrive” function and the reversing of the propellers when maneuvering is unique and distinguishes the Gori 3-blade folding propeller from all other propellers.

Suitable for engines from 7kW (10hp) - 221kW (300hp)

Folding propellers were previously reserved primarily for small and medium-sized sailing yachts with relatively low engine power. Now available for engines over 300 hp. Large sailing yachts and motorsailers can now also benefit from the special advantages of the Gori 3-blade propeller.

The result of the special design of the Gori propeller is a minimum of noise and vibration, which is often a problem with flat-bladed rotary propellers.

The 3-bladed Gori folding propeller is available in diameters from 15” to 30” for standard shaft systems and 15” to 20” for saildrive systems.

Advantage under sail

The low profile when folded results in the lowest drag of all 3-bladed folding and rotary propellers. Independent tests have proven this effect. This increases the boat's speed under sail. This increase in speed increases the overall value of your boat. Why sail slowly?

The design of the folding propeller prevents seaweed, plastic bags, and other debris from becoming stuck to it while sailing, preventing the propeller from opening. With hydraulic transmissions, the expensive installation of a shaft brake can therefore be avoided without compromising the durability of the transmission.

Power under engine

Tests by leading yachting magazines and other independent organizations have shown that the 3-blade Gori folding propeller has significantly higher forward (15%) and reverse (15%) efficiency than other folding or rotary-blade propellers. This high efficiency is achieved through the special curvature and rotation of the propeller blades. Rotary-blade propellers have a flat blade design, which means that thrust under engine power is not optimized.

Saildrive propeller

The hub of the Gori saildrive propeller is equipped with a flexible core that absorbs shock and electrically disconnects the propeller from the saildrive, as required by engine manufacturers. A safety system in the hub increases durability and ensures maneuverability at all times. The propeller is designed for the most common saildrives, such as Bukh, Sonic, Volvo-Penta (including the 50S and 100S drives), Yanmar, and others.

Professional quality

Gori Propeller has been the market leader in the design and development of folding propellers for over 25 years. The 3-blade Gori folding propeller underscores its technological leadership in this field. Only high-quality materials such as Nibral and stainless steel are used.

Gori Propellers has maintained its leadership in design, quality, and durability for over 25 years. The Gori folding propeller is the first choice for an increasing number of leading designers, yacht builders, and racing sailors.

All Gori propellers are numbered for quality assurance and future service.

Safety instructions: