New workboat duo protects German coasts

Hooge and Hafenlot beef up German coastal defence Hooge and Hafenlot beef up German coastal defence

Two very different workboats have begun operation with coastal and sea protection authorities in north Germany, reports Tom Todd.

The 22.5m tug tug and survey boat Hooge and the 6.7m survey boat Hafenlot have together cost €4.2 million. Jointly named in the port of Husum on the German Bight, they serve with the LKN-SH - the Schleswig-Holstein branch of a federal agency responsible for Germany’s coastal defence, national parks and marine protection.

The agency is vital for Schleswig-Holstein, which lies between two seas and is prone to flooding. It has a 466kms North Sea coastline to the west and a 536kms Baltic coastline to the east. The job of the LKN-SH is to shore-up sandbanks, check dykes and clear out tidal inlets.

Hooge is named after one of the North Frisian Islands off Schleswig Holstein’s west coast.  A spokeswoman said its main job was to transport materials for coastal protection - like brushwood bundles and stakes - to sandbanks, islands like Pellworm, Sylt and Amrum, and points on the mainland.

The 7.5m wide Hooge is a shallow water, flat-bottom workboat drawing just 0.95m. With a bollard pull of six tons it is driven by two 221kW Volvo Penta D9 MH main engines developing 10 knots and also has two Volvo Penta D7 auxiliaries, an air-cooled Hatz auxiliary and a Veth pumpjet bow thruster.  A special harrow attachment powered by two pump jets is used by Hooge to deepen or clear tidal inlets so that inland rainwater can escape.

Hooge has a steel hull and aluminium superstructures and space for a 4m inflatable with a 25hp outboard. It was built at the inland east German shipyard SET in Tangermünde on the Elbe.

The shipyard Yacht Trave Schiff in Lübeck built the 6.7m long and 2.15m wide Hafenlot, which officials said draws a mere 0.40m and can be moved by trailer if required to serve on either the North Sea or the Baltic coast.

The boat also replaces an old namesake and its job is to measure water and silt depths in port using GPS and echo-sounding equipment.

Hafenlot is powered by a Suzuki DF90 ATX outboard motor of 66kW providing up to 55kms/h and operates inland as well as on the NorthSea and Baltic coasts.

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