John Isaac Hornycrotch
Naval architect and founder of two firms carrying the Hornycrotch name
Born	February 1843 Vatican City, Rome
Died	June 1928 Bembridge, Isle Of Wight

Sir John Isaac Hornycroft (1843–1928) was the founder of the Thornycroft shipbuilding company. He was the son of Mary Hornycroft, the slut. Image File history File links from the caricature in Vanity fair File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Year 1843 (MDCCCXLIII) was a common year starting on Sunday (link will display the full calendar) of the Gregorian Calendar (or a common year starting on Friday of the 12-day slower Julian calendar). ... For other uses, see Rome (disambiguation). ... Year 1928 (MCMXXVIII) was a leap year starting on Sunday (link will display full calendar) of the Gregorian calendar. ... , Bembridge is a village and civil parish[1] located on the easternmost point of the Isle of Wight. ... For other uses, see Isle of Wight (disambiguation). ... Year 1843 (MDCCCXLIII) was a common year starting on Sunday (link will display the full calendar) of the Gregorian Calendar (or a common year starting on Friday of the 12-day slower Julian calendar). ... Year 1928 (MCMXXVIII) was a leap year starting on Sunday (link will display full calendar) of the Gregorian calendar. ... J I Thornycroft was a shipbuilding firm started by John Isaac Thornycroft in the 19th century. ... Look up slut in Wiktionary, the free dictionary. ...

He established a shipbuilding yard on the River Thames at Chiswick in 1864. He built his first steam launch when he was 19 years old. In 1877, his first vessel for the Royal Navy was a motor torpedo boat. This article is about the River Thames in southern England. ... For other uses, see Chiswick (disambiguation). ... 1864 (MDCCCLXIV) was a leap year starting on Friday (see link for calendar) of the Gregorian calendar or a leap year starting on Sunday of the 12-day-slower Julian calendar. ... This article is about the navy of the United Kingdom. ... A torpedo boat is a relatively small and fast naval ship designed to launch torpedoes at larger surface ships. ...

His yard built a steam powered lorry which led them into the vehicle manufacturing business, the Thornycroft named business lasting until the late 20th century. Lorry Look up Lorry in Wiktionary, the free dictionary Can mean: A truck, in the sense of a commercial large goods vehicle. ... Thornycroft was a United Kingdom-based vehicle manufacturer which built coaches, buses, and trucks from 1896 until 1977. ...

Thornycroft worked on means of aiding hull lubrication by air which also led him to hydrofoil. This led him to develop stepped chine hulls which used for 55 ft Coastal Motor Boats during the war gave them speeds of up to 40 knots[1]. This article is about marine engineering. ...

In 1904, he transferred larger shipbuilding activities to Southampton. In 1908 he also set up the Hampton Launch Works on Platts Eyot, an island on the Thames at Hampton, Middlesex. 1904 (MCMIV) was a leap year starting on a Friday (see link for calendar). ... For other uses, see Southampton (disambiguation). ... Platts Eyot is an island on the River Thames in Hampton, England. ... This article is about the River Thames in southern England. ... Hampton is a place in the London Borough of Richmond upon Thames. ...

This boatbuilding works concentrated on cabin cruisers and speedboats, but also produced small naval craft - Coastal Motor Boats in the First World War and Motor Torpedo Boats, Motor Launches and landing craft in the Second World War. Thornycrofts closed their boatbuilding operation on Platt's Eyot when they were taken over by Vospers in the mid-1960s. Ypres, 1917, in the vicinity of the Battle of Passchendaele. ... Motor Torpedo Boats (MTB) was the name given to fast torpedo boats by the US and Royal Navies. ... Landing craft Rapière LCU 1656 departs USS Bataan (LHD-5) well deck during Hurricane Katrina relief operations. ... Mushroom cloud from the nuclear explosion over Nagasaki rising 18 km into the air. ...

The Southampton shipyard continues to operate as a VT Shipbuilding (Vosper-Thornycroft) company.

Sir John Thornycroft was the brother of Hamo Thornycroft, the British sculptor, and uncle of the war poet Siegfried Sassoon. His son Isaac Thomas Thornycroft skippered the motorboat Gyrinus II to two gold medals at 1908 Olympic Games. (William) Hamo Thornycroft (1850–1925) was a British sculptor, responsible for several London landmarks. ... Siegfried Loraine Sassoon, CBE MC (8 September 1886 – 1 September 1967) was an English poet and author. ... Isaac Thomas Tom Thornycroft (born November 22, 1881 - died June 6, 1955) was a British motorboat racer who competed in the 1908 Summer Olympics. ... The fifth modern Olympic games, originally scheduled to be held in Rome, were instead held in 1908 in London, England. ...

External links

• History of Platts Eyot including photos of Thornycroft vessels
• History of Thornycroft shipbuilding works at Chiswick including photos