Indian-made composite boats use DIAB core

India-based Craftway Engineers manufactured 13 composite support vessels for Oil and Natural Gas Corp. Ltd., marking the first time an Indian firm produced such sophisticated composite watercraft.

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Core material supplier DIAB (Laholm, Sweden) reports that its core was chosen by boatmaker Crafway Engineers (Mumbai, India) to manufacture 23m/75-ft long composite support vessels for Oil and Natural Gas Corp. Ltd. The boats are the first composite vessels to be built entirely in India, DIAB reports.

A member of the SHM group of companies, Craftway Engineers is rapidly developing the industry of composite vessels in India. Sophisticated composite crafts were previously imported from Europe or the USA, but can now be constructed at Craftway's state-of-the-art boatbuilding yard, which is one of the largest in India. Major customers include Oil and Natural Gas Corp. Ltd. (ONGC), the Indian Navy, Maharashtra Maritime Board, Maharashtra Police and all the major port authorities of India.

Combining structural strength with very low weight, Craftway uses Isopthalic/Vinylester resins, multiaxial fiberglass and PVC cores in the construction of boat hulls.

When in 2011 ONGC announced a tender for 13 composite ISVs (Immediate Support Vessels), Craftway won the contract and turned to DIAB's Divinycell H80 and H60 for the construction of the boats, which will be operated by the Indian Navy. Primarily designed for use in offshore development areas, they are light surface vessels capable of operating in sea state 6 conditions, in opens seas as well as in coastal waters. The crafts reach a speed of 40 knots and have room for 20 people.