Make no bones about it, Oliver Berking is a man with a plan – but that plan does not involve having the number one yachting heritage centre in the world. That honour, for now at least, he leaves to The Museum of America and the Sea in Mystic, Connecticut. Berking has some competition apart from Mystic, not least the National Maritime Museum in Greenwich, London, but the new Yachting Heritage Centre in Flensburg is a serious achievement. The building, built on a site adjacent to the Robbe and Berking Classics shipyard on the fjord that is Germany’s Baltic border with Denmark, contains a hugely impressive archive of books, plans, models, art, photography and other memorabilia, displayed on a permanent and rolling basis. “I want to be the small Mystic Seaport…