Vickers Vimy/Rolls-Royce Biplane, flown by Sir John William Alcock (1892-1919) and Sir Arthur Whitten Brown (1886-1948) made the first non-stop flight across the Atlantic on 14th-15th June 1919. They flew from St John's, Newfoundland and crash-landing in a bog near Clifden, Galway, Ireland. With a fuel capacity of 3932 litres (865 gal) and a cruising speed of 144 km/h (90 mph), it crossed the Atlantic Ocean in 16 hours They were knighted by King George V on their return. Designed originally as a heavy bomber to attack Germany and constructed mainly of wood covered by a layer of fabric, the aircraft is powered by two Rolls-Royce Eagle VIII V-12 engines.