Luhrs Marine Ltd, the UK subsidiary of Hunter Marine Corp in the US, is to shift the manufacture of Hunter and Legend sailing yachts to the US following a significant downturn in business.The closure of the Luhrs factory, located in Portland, Dorset, is expected to help offset the softening demand for the company's yachts in several key markets, including the US.The UK investment was a success and the Hunter brand continues to experience a growth in the worlds largest yacht sailing market, with active distributors in 25 European countries