Robert Fulton the "Nautilus", the first practical submarine in history. Fulton is also credited with inventing some of the world's earliest naval torpedoes for use by the British Royal Navy. Fulton became interested in steam engines and the idea of steamboats in 1777 when he was around age 12 and visited state delegate William Henry of Lancaster, Pennsylvania, who was interested in this topic. Henry had learned about inventor James Watt and his Watt steam engine on an earlier visit to England. Robert Fulton was born on a farm in Little Britain, Pennsylvania, on November 14, 1765. He had three sisters –
Combined gas and steam their main (or only) engines, e.g. in COGOG or COGAG mode, such as the s, but currently no naval ship uses this concept. However some modern cruise ships are equipped with COGES. E.g. Celebrity Cruises' "Millennium" and other ships of her class use turbo-electric plants with two General Electric LM2500+ gas turbines and one steam-turbine. BMW is currently researching combined gas and steam for automotive use, using their turbosteamer system. This uses the waste heat of combustion from the exhaust and turns it into steam to produce torque which is input into the crankshaft. Combined gas and steam Combined gas