• Repair of 3 stainless steel propeller blades
  • M/V Mary Arctica damaged  due to extreme ice conditions in the Antarctic Ocean
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Dear <<Name>>
We are in the fortunate position that our repair service is worldwide, and we have the pleasure of carrying out work for customers from all over the world. In addition to this, we also have a good co-operation with the Danish Shipyards and Shipping companies.  I want to share 1 recent repair and 1 ongoing repair for two Danish Shipyards with you.

Repair of 3 stainless steel propeller blades 

For the Danish Shipyard Fayard A/S, we have a propeller blade repair job in our workshop right now. This repair is of 3 spare blades for a ferry. The blade material is stainless steel.

This repair includes straightening, welding and repair of blade tips and machining of the blade feet.
The involved classification society is  Lloyd's Register
Learn more. Click to read more about repair of propeller blades and fixed propellers
M/V Mary Arctica damaged  due to ice conditions in the Antarctic Ocean

M/V Mary Arctica, part of Royal Arctic Lines fleet, has just completed an unplanned docking at Orskov Yard in Frederikshavn, due to damages caused by heavy ice pressure during a charter trip to the South Pole.
The 113-meter-long vessel came under ice pressure resulting in damages to the rudder and the rudder stock, as well as the steering machine foundation.
MarineShaft carried out complete repair of the rudder arrangement as well as laser alignment of the rudder trunk and on-site machining.
The rudder stock, with the dimension Ø674 x 6425 mm, showed deflection from 4.6 to 5.7 mm.

MarineShaft received both rudder stock and rudder, which is a type Becker spade rudder, in the workshop in Hirtshals. The Maker Becker Marine System and the involved classification society DNVGL participated during inspection. The inspection included blue fit test and showed ovality in the rudder cone.
In addition to deflection, the rudder stock had also suffered damages to the lower rudder cone as well as the top. The damages were machined, welded up, heat treated and re-machined. Two new stainless steel liners, supplied by Becker Marine System, were machined and fitted to the rudder stock, which was also painted between the liners. With a custom-made tool, we machined the rudder cone.
As the steering machine foundation was displaced due to the incident, the existing reamer holes had to be re-machined, and this MarineShaft carried out with portable equipment. The 6 new bolts were manufactured by MarineShaft.
Kongsberg and Orskov Yard took care of the re-installation. Everything went as planned due to a good planning and co-operation.

November 18th M/V Mary Arctica docked out and is right now at quay in Aalborg at Royal Arctic Lines terminal getting ready for the next charter to the South Pole.

We co-operate with other Danish Shipyards as well, and as for these 2 jobs, we are always proud to participate in a repair.

Thank you for your interest in our newsletter.

Best regards

MarineShaft A/S
Hanne Magnussen
Marketing Manager
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MarineShaft · Pier 2 · Hirtshals 9850 · Denmark

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