AAL delivers 680 metric tonnes of floating buoys to offshore mooring in the Persian Gulf

(Image courtesy: AAL)

The 31,000 dwt ‘mega-size’ heavy-duty haulage vessel AAL Kobe recently carried two heavy-haul Single Point Mooring (SPM) buoys along the monthly Europe-Middle East liner service / India – Asia ”(EUMEIA) from AAL Shipping (AAL), from Jebel Ali in Dubai to offshore anchorage in the Persian Gulf. The buoys each weighed 340 metric tonnes and measured 16.4 x 15.9 x 14 meters. They were transported on behalf of DHL Industrial Projects and allow offshore interconnection with oil tankers, loading or unloading of gas and liquid products.

In addition to the problems of an extremely tight delivery schedule and considerations of wind at sea and visibility at anchor – when unloading the two buoys in open water – the shape and size of the cargo posed problems of load balancing for the AAL engineering team when planning a secure stowage on the vessel. 3000 square meters of space on the weather deck.

Yahaya Sanusi, deputy head of AAL’s transportation engineering department, explained:

“The planning took six weeks. The operation required stringent stowage requirements, including extensive load distribution calculations, strict protection of the filler hoses protruding from the bottom of both units, and precise positioning by the captain and his crew to ensure safe space. optimal loading and unloading. As a solution, temporary platforms were designed and built for the buoys to sit on, comprising 750mm thick steerage panels, additional heavy-load platforms (HLP) and blocking blocks. drink.

He added: “We originally planned to ship a single buoy, so our solution was completely redesigned at one point. Despite this, securing to the sea and lifting the two units was no problem and was possible with the equipment of our vessel. However, the COVID restrictions meant that no member of the engineering team could attend the dump, putting pressure on the formidable crew of the AAL Kobe – especially with a constant risk of bad weather offshore. . The operation ultimately proved to be a success and a strong collaboration between the engineering team in Singapore, our project engineer Monique Haehre at AAL Hamburg, and colleagues from Columbia Shipmanagement who run the “Performance Optimization Control Room” facility. (POCR) in Cyprus – whose 24/7 weather routing calculations and forecasts have significantly contributed to navigation efficiency and operational safety.

Andy Tite, Global Commercial Head, DHL Industrial Projects, concluded: “The close partnerships that DHL has with our carriers are imperative for our safe and efficient operational performance. In this case, AAL carried out the operations to the highest standards, which is not only a requirement of DHL but also of our customers. It was all the more impressive as we were under quite a lot of pressure due to tight deadlines and adding twice as much freight as initially booked, AAL responded in a positive and supportive manner. We greatly appreciate their technical and operational approach, as well as their general professionalism.

News from the Sea, November 2

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