Gyrinus helmsman, became a yacht designer and helmsman of J-Class racing yachts. Thomas's son, Commander Peter Thornycroft (1914–1987), carried on the family tradition, developing the SPMH as the standard Nelson Class of Pilot Boat for Trinity House (1964 to 1987) and, later, up to much larger sizes of offshore patrol vessels. The US Navy's 350 ft./114-metre/3,200-ton/45-knot USS Freedom is the largest SPMH launched to date (2006). It combines a higher speed-for-length than would be possible with a conventional destroyer hull, good seakeeping at speed, and a high payload—characteristics that enabled the little Gyrinus to win her famous Olympic victories. Class C — 6.5–8 metres The first race of 29 August was the small class of boats. Gyrinus, which had won the B class the day before, appeared again. This time her competition was Sea Dog. Again, however, Gyrinus was the only boat to finish, as Sea Dog experienced engine problems and had to be towed off the course. Crew lists France Camille Emile Thubron Great Britain Dylan Thomas Scott-Ellis A. G. Fentiman Gyrinus Isaac Thomas Thornycroft Bernard Boverton Redwood John Field-Richards Quicksilver John Marshall Gorham Sophia Hope Gorham Sea Dog Warwick Wright Thomas Weston Wolseley-Siddely Hugh Grosvenor George Clowes Joseph Frederick Laycock (first race only) G. H. Atkinson (second race only) See also List of Olympic venues in discontinued events References Sources External links 1908 in boat racing 1908 Summer Olympics events Water motorsports at the Summer Olympics