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"TSATS": The Harbour Tug

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The Harbour Tug


My entry of the "to sail the technic sea" contest is a floating vessel in the style of a Harbour tugboat. The feature of my tugboat is a Voith Schneider propulsion system. A classic propulsion system for ships works with a horizontal driveshaft and a propeller. The advantage of the vertical Voith Schneider propeller is, that it could adjust the boost of the propeller in all directions, without using a rudder.


The vessel can move sidewards and rotates in every radius which the captain wants. To get a little view on the maneuver abilitiys i made a short Video of my harbour tug

Technical Datas

Two propellers in Voith Schneider style powered by twoPF-M motors with a gear ratio of 1:1.4

Two Pf-M to adjust the pitch of the propellers. The pitch controls the direction of boost.

Two receivers and transmitters

One 8878 LiPo accu


width: 280mm

length: 600mm

height: 360mm

weight: 2790grams

The Deckhouse and the Bridge is built modular to get a easy access to the electric parts


the two dishes are used to show the driver in which position the pitch of the propellers is.


on the afterdeck i have added a nonworking winch for the tow line


The stabilizer sword and two of the airtanks which are adjusting the waterline of the vessel.


more pictures on flickr and Brickshelf

If you want to take a look on the building process, please click here

Thanks for reading

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Whan an awesome entry! It's functional, it looks the part and it's also incredibly cute - in a very Technic-y way, of course.

By the way, have you tested the "open water" RC reception range yet?

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thanks, with this cold water i dont want make an open water test, too much interferences by the sunlight.

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Great MOC effe. Knew I shouldn't have tried my hand at this one. :wacko: Excellent!

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