SRP Rudderpropeller

New SCHOTTEL M-series: Proven SRP available in medium-size

With medium-sized azimuth thrusters, SCHOTTEL meets new challenges on the international maritime market. These include shifted engine power classes, new ice class rules and the growing trend towards electric or hybrid drive vessels. Combining the latest technologies in mechanical engineering, hydrodynamics, and digitalization, the medium-sized thrusters are available in three sizes corresponding to the common engine power classes: SRP 210 (640 kW), SRP 240 (850 kW) and SRP 270 (1,000 kW).


Suitable for any vessel type and application
These new SCHOTTEL M-series azimuth thrusters offer the right solution for any vessel type and application with a range of various power source options and input directions. The azimuth modules are available for Z-drives, L-drives and ZY-hybrid drives, making them suitable for horizontal electric, vertical electric or combined direct engine plus horizontal electric motor connection. Thus, the M-series thrusters are also compatible with hybrid solutions – such as SCHOTTEL SYDRIVE.


No vessel design modifications required
Thanks to two basic installation variants, the M-series works with any type of vessel design. Besides the standard installation with variable propeller arm length, a compact minimized variant with shorter propeller arm length is available. These compact installation variants (LC for L-drives, ZC for Z-drives) open up new scope and greater design freedom for ship designers, while leaving more space for other equipment. Both the standard and the compact variant can be bolted, welded or resiliently mounted on vessels.

Great versatility
The new SCHOTTEL M-series features a modular system that allows for multiple configuration options. Great versatility and flexibility in the medium power range, high reliability, optimal spare part availability, and good retrofit options – all combined with the best propulsion efficiency thanks to latest hydrodynamic optimization and mechanic design.

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The SCHOTTEL Rudderpropeller. From brilliant invention to global classic

The SCHOTTEL Rudderpropeller is recognized worldwide as the classic marine propulsion system. Developed and built in 1950 by Josef Becker, founder of the present-day SCHOTTEL Group, it quickly conquered the world of modern shipbuilding. The name of SCHOTTEL has become a synonym for azimuthing rudderpropellers.


In 2005, Josef Becker was honoured post - humously with the renowned Elmer A. Sperry Award for his pioneering invention. The original SCHOTTEL Rudderpropeller (SRP) has been subject to continuous ongoing development. Today, with a power rating of up to 6190 kW, it is the superior propulsion solution for a wide range of vessels.

Combination of propulsion and steering

The principal characteristics of the SRP derive from the combination of propulsion and azimuth steering. There is consequently no need for a rudder, and the engine power is optimally converted into thrust. The 360° rotation of the Rudderpropeller means that the full input power is available for manoeuvring.

Propulsion for every application

In tugs of all classes, in inland shipping or on the open sea, in offshore applications, under tropical or arctic conditions – the SRP can be found everywhere. SCHOTTEL engineers develop the appropriate propulsion concept for every requirement, whether diesel-electric or diesel-direct drive.


The SRP is the ideal propulsion solution for many vessels where the focus is on optimal implementation of the available power. The SCHOTTEL experts provide advice and support in matters of hydrodynamics, tank and model tests, monitoring and steering options, FE calculations, ice-class considerations and special solutions. Their experience forms the basis for long-term customer satisfaction.


  • Maximum manoeuvrability
  • Optimum efficiency
  • Economical operation
  • Space-saving installation
  • Simple maintenance
  • High reliability
  • Optimized in terms of cavitation and vibration
  • Dependable design
  • Fixed or controllable-pitch propeller
  • Z or L drive
SCHOTTEL Rudderpropeller SRP
SCHOTTEL Rudderpropeller SRP
Brochure Rudderpropeller
The brochure SCHOTTEL Rudderpropeller in pdf for download (4 MB)