Small engineering support jobs; Still a big challenge
09 April 2019
OSD-IMT is probably best known for large projects, designing new vessels, but our clients also know where to find us for smaller projects, which are often equally challenging as the big ones. To give you an idea;
We have recently been working on drawings for the installation of a new transducer and cable transit pipe into an existing research vessel’s gondola. The same owner approached us to investigate a trimming problem on one of their vessels. We submitted a report with three options to improve the motion characteristics and draught of the vessel. Among these options was fitting permanent ballast, as well as another option of utilising the aft ‘dry’ tanks’ as fresh water ballast tanks. The benefit of the second option was that the tanks could be filled and emptied to suit the vessel’s aft cargo. The owners felt this was the most pragmatic and suitable option for their needs.
Another client had a requirement to upgrade one of their ERRVs by installing an additional daughter craft and davit on the port side of the vessel. We were contracted to produce structural drawings for the new installation, this included DC davit foundation structure, FRC davit foundation structure, new boarding platforms, FEA calculations, inclining experiment and stability book update. Furthermore, this client has taken the decision to replace the existing propulsion units on one of their vessels with new units of a similar size and specification. We will produce all structural and engineering drawings and FEA calculations for the installation. We are also doing design work for a shark’s jaws installation on a workboat with dredging duties. The shark’s jaws will be fitted to a 26m LOA Damen Multi-Cat.
In the meantime we were approached by the owner of a platform supply vessel (PSV) which has been converted into a temporary dive support vessel. New modular diving equipment on the aft deck and additional personnel accommodation caused a change in lightship weight and centre of gravity. This required a revision of the existing stability booklet. It also meant that the loading conditions had to be revised to fit the new operational profile. Finally, the addendum to the stability booklet needed to be approved by class. In conjunction with class and the owner, it was decided to create an addendum to the existing stability booklet, showing the new lightship condition, the new loading conditions and the resulting stability values. We were able to prepare the complete addendum within a week.
Anything OSD-IMT can do for your fleet? Just give us a call to discuss the possibilities.