Versatile repair mix for German yard
Two island supply boats and a research ship were among the varied and regular mix of specialist workboats in for repair or maintenance this autumn at Germany’s Diedrich Werft, reports Tom Todd.
The 37.25m loa island supply ship Pionier came for bow thruster and propeller plant maintenance. The 65 year old ship was also due for DNV-GL inspection, Diedrich reported.
Another island supply vessel – the 27.8m loa RoRo cargo ship Harle Riff also called for underwater hull conservation work and repairs and maintenance. Diedrich said propeller, shaft and rudder inspections were also on the work docket as was a safety check.
Harle Riff, like Pionier, is also a veteran and now nearly 60 years old. Both ships draw around 1.50m according to Diedrich – a shallow draught which is typical of the specialist ships operating in the mudflat waters – called Wadden - between the German East Frisian islands and the mainland. They provide regular work for Diedrich just a few miles upstream on the Ems from the giant port of Emden.
Among other interesting customers at the yard this autumn has been the small research ship Burchana, which has visited Diedrich before. Just 30m long and 8m wide, it draws 1.3m and came in for annual hull conservation work and inspection of its shaft, rudder and propeller plant.
The ship is one of a fleet of small but specialised vessels which serve the Government’s NLWKN agency in Lower Saxony. The agency is responsible for coastal, marine and river protection, measurement, monitoring and flood control.
Earlier this year Diedrich hosted another NLWKN vessel - the impressive service and maintenance boat Utlandshörn, which only started work for NLWKN in 2016. The boat underwent below surface hull and deck conservation and propeller inspection.
The tug Penny Lane called for underwater hull conservation as well as bow thrusters and rudder inspection. It was also listed for hull thickness measurement. And the cargo ship Nora came for repairs and overhaul.
Pontoons have also been in evidence at Diedrich of late The 36.06m loa pontoon coupling workboat Pionier X1 underwent hull thickness measurement and conservation. The pontoon Seebär, belonging to Lower Saxony Ports (NPorts) called at the same time for hull conservation and repairs to its anchor plant and bottom plating.
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