SCHOTTEL ControllablePropeller: 60 years of expertise

The SCHOTTEL ControllablePropeller (SCP) is a high-performance propulsion system for applications with particularly high demands in terms of vessel speed, power density and sound signature. Its versatility makes it a popular choice for trawlers, ferries and cruise vessels as well as navy and governmental vessels, amongst others.

Two four-bladed, flow-optimized SCPs at SCHOTTEL Wismar, Germany.

Sixty years ago, the first series of controllable pitch propellers was built at the Wismar facility which today belongs to SCHOTTEL. Following six years of successful cooperation, SCHOTTEL acquired the company in 1998 which at the time traded under the name of Wismarer Propeller- und Maschinenbau GmbH (Wismar propeller and machine construction). The German propulsion expert from Spay incorporated the company’s staff with its decades of expertise. Major investments and an extensive modernization programme turned the site into a leading-edge production facility for propulsion systems. Since then, this combined competence in engineering has resulted in many advancements of the proven and reliable design of the controllable pitch propeller.

Tailored to customer requirements

“Each and every SCP is tailored to the customer’s specific requirements. With each order we rise to the challenge of providing the most reliable and effective system. Extensive analyses of each propulsion system and vessel plus modern design methods such as CFD ensure sound hydrodynamics and maximum overall efficiency,” states Dr. Michael Potts, Branch Manager of SCHOTTEL Wismar.

Optimized hubs for various challenges
Today, the SCP comes with a selection of different hubs, catering for the specifications of various fields of application. While there is no general need for high speeds or low noise levels on dredgers as well as fishing or cargo vessels during operation, the same is almost always crucial for navy and research vessels or yachts if the specific challenges they face are to be met. Consequently, the SCP also comes with a flow-optimized hub for these requirements. Both variants are available with a four- or five-bladed CPP system. The five-blade flow-optimized variant is the system with the lowest sound emissions in the lineup, suitable for high-load applications in faster vessel types.

Modular system, adaptable to specific requirements
The SCHOTTEL ControllablePropeller is a modular system which can be adapted to the specific requirements of each vessel. A special hub variant for dredgers, for example, prevents sediment which could be swirled up during operation from entering the hub by providing an additional seal on the connection between the propeller blades and the hub. All variants of the SCP are EAL approved and maintenance-friendly. They can optionally support full-feathering mode and be operated with SCHOTTELs latest PropControl remote-control technology.

Tried and tested in thousands of practical applications
Whether for a fishing vessel facing high seas and strong winds or a government vessel on an important mission, the key requirement of a propulsion system is reliability. With its robust construction, based on sixty years of engineering experience, the SCP features a design that has been tried and tested in thousands of practical applications. The SCP is available in a power range of 600 kilowatts to 30 megawatts, with propeller diameters up to eight metres in length. Single shaft lengths of up to 20 metres can be produced. SCHOTTEL’s After Sales Service provides support throughout the entire life cycle of a propulsion system through its worldwide service network – from vessel commissioning to technical support, service packages in emergencies and preventive maintenance to the manufacture of spare parts.