SCHOTTEL, Topec Team Up on NAV Redesign

SCHOTTEL and Topec launched their common project-agreement for the re-design and production of the SCHOTTEL NAV, the classic complete outboard propulsion unit at EUROPORT in Rotterdam, the Netherlands.

Dr.-Ing. Jens-Erk Bartels, Director Sales and Marketing at SCHOTTEL said: “With Topec we found an experienced partner for engineering and manufacturing of the new NAV generation and integrating our Rudderpropeller (SRP).”

At the show the prototype of the NAV 200 was presented at the Topec stand. The NAV is a classic within the SCHOTTEL product range. It has been established on the market for about 60 years.

In principle the NAV is an adaptation of the SCHOTTEL Rudderpropeller with an engine and related equipment. Additionally the base frame accommodates the daily fuel tank. This has a capacity of about 600 litres on the NAV 200, for example.

A diesel engine is used as the prime mover and the switch cabinet includes electrical and electronic monitoring elements. The clutch between the prime mover and the Rudderpropeller transmits the power through a flexible coupling and a universal shaft. The propeller can be raised and lowered in vertical direction and also pivoted to the rear.

Maintenance is easy due to the mobile installation of the construction. The Navigator merely has to be bolted onto a foundation prepared by the shipyard. Another advantage is the flexible applicability. The SCHOTTEL Navigator can be used in almost every kind of floating object, especially in barges, ferries, working boats or floating cranes.

SCHOTTEL also offers various product variants with the new generation of Navigators, whose slim design is a real eye-catcher: the NAV Basic, NAV Offshore and NAV Soundproof. The Offshore and Soundproof versions can be combined. The canopies are galvanized in all versions and the Offshore and Soundproof models have forced ventilation. The Rudderpropeller of NAV Offshore is also protected by an additional cover. Modern and reduced-emission diesel engines from MAN or Caterpillar supply the input power to the propeller, ranging from 190 kW (NAV 0320) to 746 kW (NAV 550).

The SCHOTTEL Rudderpropeller (SRP) is the classic marine propulsion system. It was developed and built in 1950 by Josef Becker, the founder of the present-day SCHOTTEL Group. In 2005, Josef Becker was honoured posthumously with the renowned Elmer A. Sperry Award for his pioneering invention. The specific characteristic of this propeller is the 360° rotation which means that the full input power is available for manoeuvring and a rudder is not necessary. Rudderpropeller and engine operate together in the NAV and have long been a popular addition to the multifaceted applications of the Rudderpropeller.

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Press Release, November 7, 2013