YOUR PROPULSION EXPERTS

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NAV · SCHOTTEL NAVIGATORThe reliable and compact propulsion unit consisting of Rudderpropeller and engine.

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SCHOTTEL NAVIGATOR – THECOMPLETE PROPULSION UNIT

For more than 50 years, the SCHOTTEL Navigator (NAV) hasbeen a byword for a reliable and compact propulsion unit suit-able for use on an extremely diverse range of vessels. In princi-ple the NAV, an adaptation of the SCHOTTEL Rudderpropeller(SRP), is a largescale mobile outboard plant, providing the vessel with 360 degrees steerable manoeuvrability.

COMPACT DESIGN

All main components of the SCHOTTEL Navigator aremounted on the base frame, which also accommodates thedaily fuel tank. A canopy protects the complete unit. A dieselengine is used as the prime mover. The electrical and electronicmonitoring elements are installed in an integrated switch cabinet. The clutch between the prime mover and the Rudder-propeller transmits the power through a flexible coupling anda universal shaft.

PROPULSION: RUDDERPROPELLER (SRP)

The SCHOTTEL Rudderpropeller is mounted at the rear end ofthe base frame and can be hydraulically raised or lowered invertical direction by means of a depth adjustment facility. Thisserves to ensure maximum propeller thrust with all vesseldraughts by maintaining the correct propeller immersion. Formaintenance purposes, the Rudderpropeller can be pivoted to the rear using hydraulic or mechanical lifting devices. Thepropeller is equipped with an anti-cavitation plate to protect itfrom damage, or alternatively with a nozzle, if higher bollardpull is required.

SIMPLE INSTALLATION

Installation is fast and simple, since the Navigator merely hasto be bolted onto a foundation prepared by the shipyard. Thusevery kind of floating object can easily become motorized. TheNAV is characterized by its wide variety of applications. As anextra service SCHOTTEL offers installation drawings accordingto the customer’s requirements. Our sales and engineeringteams will be happy to provide assistance and advice.

FLOATING CRANE SCALDIS VAN SEUMEREN4 x SCHOTTEL Navigator Type NAV 330 (465 kW each)

GRAB DREDGER BODENWERDER2 x SCHOTTEL Navigator Type NAV 110 (146 kW each)

ADVANTAGES

• Self-contained propulsion package• Compact unit• For virtually any watercraft• Fast installation• Easy maintenance• 360° manoeuvrability• Powerful unit• Easy entrance/access through hinged doors

with push-to-close latches• Swing out and depth adjustment facility

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muffler

marine diesel engine

clutch with integrated hy-drive

hydraulic aggregate

SCHOTTEL Rudder-propeller

switch cabinet

SRP

switch cabinet diesel engine

daily fuel tank integrated intobase frame

Here you can findthe technical data

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APPLICATION ORIENTED PRODUCT VARIANTS

NAV RESILIENTLY MOUNTED

For special vessel applications reduction of the structure-borne noise may be necessary. For such cases SCHOTTEL offers resilient mounting of the NAV and the thrust bearing.

All NAV variants can also be supplied with a ducted propeller.Rudderpropellers without nozzles are fitted with an anti- cavitation plate over the propeller to prevent air intake.

NAV ONATRA

The simplified version of the SCHOTTEL Navigator, Onatra (seefig. Barge installation), comprises the steering and propulsionsystem without motorization: a Rudderpropeller fixed to a vertical frame welded to a base frame, with the hydraulic unit,battery box and switch cabinet. The clutch, hydraulic pump, cardan shaft and control panels are supplied separately.The engine bed and canopy are supplied by the shipyard.

NAV BASIC

The NAV Basic comprises the diesel engine, the exhaust gassystem, the engine piping and cabling, and the daily fuel tankembedded in the base frame construction. Furthermore, theNAV Basic is protected by a steel sheet canopy painted to thecustomer’s specifications. The shipyard only has to provide theconnections for fuel to the main tank, for electric connection tothe bridge and for cooling water, if required.

NAV SOUND-PROOF

The sound-proof version consists of an enclosed, insulatedcanopy, thereby reducing the level of air-borne noise to a mereof about 80 dB(A) at a distance of one metre.

NAV OFFSHORE

For demanding offshore conditions the NAV Offshore is characterized by an enclosed version of the canopy. Thecanopy and doors are galvanized to prevent corrosion.The upper part of the Rudderpropeller can also be protectedby an additional cover. The interior is cooled by a forced venti-lation system.

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Diagonal installation

Barge installation with NAV Onatra

Hopper barge installation

NAV 170 Sound-insulated

HYDRAULIC GRAB DREDGER2 x SCHOTTEL Navigator Type NAV 170 (280 kW each)

HYDRAULIC GRAB DREDGER2 x SCHOTTEL Navigator Type NAV 170 (280 kW each)

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STEERING SYSTEM AND MOTORIZATION

Propulsion systems are only as good as their steering. Opti-mally adapted data exchange between the different compo-nents is therefore top priority. A further priority is a userinterface that is as intuitive as possible, enabling safe manoeu-vring. Here too, SCHOTTEL steering systems set the course,both literally and figuratively.

SST 600 WITH COPILOT

This is a full follow-up way-dependent electro-hydraulic redundant steering system, including a time-dependent emergency steering system. This steering system operates

proportionally. This means that small steering angles are electronically transformed into smooth steering movementsand large steering angles are transformed into fast steeringmovements including an acceleration and deceleration ramp.

MOTORIZATION

The SCHOTTEL Navigator is supplied with a CAT or MAN dieselengine. The engine speed can be regulated by SCHOTTELspeedronic, an electro-mechanical system. Otherwise regulationis possible using a 4-20 mA or 0-5/10 V signal.

SRP 330

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electric cable

hydraulic pipes

WATER INJECTION WORKBOAT (WIG) HOL BLANK3 x SCHOTTEL Navigator Type NAV 200 (331 kW each)

DUMP BARGE ZINGST2 x SCHOTTEL Navigator Type NAV 330 (545 kW each)

DOUBLE ENDED FERRY2 x SCHOTTEL Navigator Type NAV 330 (465 kW each)

SOUNDING VESSEL VISURGIS1 x SCHOTTEL Navigator Type 110 NAV sound-insulated (182 kW)

HYDRAULIC GRAB DREDGER2 x SCHOTTEL Navigator Type NAV 170 (280 kW each)

DUMP BARGE SATO GALICIA2 x SCHOTTEL Navigator 330 Offshore (je 540 kW) · 1 x SPJ 132 T (555 kW)

DOUBLE ENDED FERRY FLAMINGO2 x SCHOTTEL Navigator Type NAV 110 (190 kW each)

DUMP BARGE ACANTO2 x SCHOTTEL Navigator Type NAV 330 (537 kW each) · 1 x SPJ 57 RD (172 kW)

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SCHOTTEL GmbHMainzer Str. 99D-56322 Spay / RheinGermanyTel.: +49 (2628) 61 0Fax: +49 (2628) 61 30024 h Emergency Hotline+49 (171) 47 29 154

For further addresses: www.schottel.de

PROFESSIONAL PARTNERSHIP – THROUGHOUT THE VESSEL’S LIFE

As a SCHOTTEL customer, you benefit fromindividual, in-depth advice and support at allstages of a project, from planning and com-missioning through to preventive maintenance.

A dense worldwide service network is readyto offer assistance and ensures the swift supply of spare parts – along with experiencedSCHOTTEL technicians if required.

The name of SCHOTTEL traditionally standsfor quality in engineering, with over 90 yearsof experience in design and the precisionworkmanship of a family-owned enterprise.Our innovative propulsion systems are a byword for reliability and high performanceand set standards in global shipping.

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