John I. Thornycroft & Company Limited, usually known simply as Thornycroft was a British shipbuilding firm founded by John Isaac Thornycroft in Chiswick in 1866. It moved to Woolston, Southampton, in 1908, merging in 1966 with Vosper & Company to form one organisation called Vosper Thornycroft. From 2002 to 2010 the company acquired several international and US based defence and services companies, and changed name to the VT Group. In 2008 VT's UK shipbuilding and support operations were merged with those of BAE Systems to create BVT Surface Fleet. In 2010 remaining parts of the company were absorbed by Babcock International who retained the UK and international operations, but sold the US based operations to the American Jordan Company, who took the name VT Group. History John Isaac Thornycroft had shown shipbuilding ability when aged 16 he began building a small steam launch in 1859. The vessel was named Nautilus and in 1862 it proved to be the first steam launch with enough speed to follow the contenders in the University race. The ensuing publicity prompted his father, the sculptor Thomas Thornycroft, to purchase a strip of land along the Thames at Chiswick in 1864, and that became the start of John I. Thornycroft & Co. The yard at Chiswick In its first ten years the yard had a very modest production, mostly building steam launches and steam yachts. The breakthrough came in 1873, when the firm built the small steel torpedo craft for the Navy of Norway, followed by similar boats for other navies, and by for the Royal Navy in 1877. Torpedoes and torpedo boats were seen as weapons of the future and throughout the 1870s and 1880s the Thornycroft yard became a major supplier to a number of navies. As Banbury put it: The original boats had locomotive-type boilers but, like its competitors, the company developed a water-tube boiler, patented in 1885 and providing more speed. The size of the vessels grew steadily, exceeding 100 tons with Ariete, delivered to Spain in 1887 and 200 tons in the Daring-class torpedo-boat destroyers of the Royal Navy. The largest vessel built at Chiswick was the Speedy of 810 tons. During the 1890s it became increasingly difficult for the new vessels to pass under the Hammersmith Bridge – masts and funnels had to be lowered or removed, and put back in place again further down the Thames, and if something