Thomas Harrison Butler
Thomas Harrison Butler, Doctor of Medicine, DM, FRCS(Eng) (19 March 1871 – 29 January 1945) was a British ophthalmologist and amateur boat designer. He published various designs of small, traditionally built yacht and was particularly concerned with the boat's handling under sail. Medical career Butler graduated with an Master of Arts (Oxbridge and Dublin), MA from Corpus Christi College, Oxford in May 1902, and received a Doctor of Medicine, Doctorate of Medicine (DM) at the same time. He practiced in Coventry, Birmingham and Leamington Spa, Warwickshire, Leamington Spa, where he had private practices. He spent most of his time, however, on unpaid hospital work. Boat designer Harrison Butler was "a strong believer in the 'metacentric shelf formula' to achieve good balance and handling under sail. The theory held that as a yacht heels under sail, its balance will depend on the immersed form of the hull, with different sections exerting varying degrees of buoyancy and aft sect ...
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