EURONAUT Is A Homemade Submarine

A team of engineers and technicians headed by Carsten Standfuss, a Naval Architect from Germany, has built one of the biggest and most sophisticated homemade submarines in the world.  He has named the vessel the “Euronaut.”


The Euronaut has an overall length of 52 ft, a surfaced displacement of almost 60 tons and a working depth of 800ft.  The design of this diesel electric submarine took 12 years to complete.  Another 12 years was needed for the construction which was accomplished mostly during leisure time on weekends and holidays.

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“Euronaut” was developed as a non-commercial diver support and research vessel for wreck diving and underwater investigations.  For this purpose it is equipped with a diving chamber, which is theoretically able to provide saturation dives on the sea floor up to the maximal working depth.  The submarine is operated by a crew of three to six persons and is capable of staying under water for a week.

euronaut The vessel has a 192 hp diesel engine and a 55 hp electric motor with a lead battery weighing 4 tons which allows travelling at a speed of 8 knots when surfaced and 5 knots when submerged.  For the range of 250 nautical miles the sub carries 250 gallons of diesel oil.


On the inside, the engineers put all the important features of a modern submarine like an optronic mast, side scan and multibeam sonar, satellite navigation, compressors, air filters etc.  They constructed the submarine at a site near Bremen in Germany close to the designer’s house.  The Euronaut is not the first under vehicle built by Carsten Standfuss.  At the age of 19 he made a one-man submersible called “Sgt. Peppers,” which according to The Guinness Book of Records was the smallest fully functional manned submersible in the world with a weight of only half a ton.  By completing the construction of the Euronaut, Carsten Standfuss has fulfilled his childhood dream of having his own research vessel.  The trials of the Euronaut took place at the Baltic Sea near Rostock, Germany.

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