The Napier Lion is a 12-cylinder, petrol-fueled 'broad arrow' W12 configuration aircraft engine built by D. Napier & Son from 1917 until the 1930s. A number of advanced features made it the most powerful engine of its day and kept it in production long after other contemporary designs had been superseded. It is particularly well known for its use in a number of racing designs, for aircraft, boats and cars.
D. Napier & Son Limited was a British engineering company best known for its luxury motor cars in the Edwardian era and for its aero engines throughout the early to mid-20th century.
A runabout is any small motorboat holding between four and eight people, well suited to moving about on the water. Characteristically between 20' and 35' in length, runabouts are used for pleasure activities like boating, fishing, and water skiing, as a ship's tender for larger vessels, or in racing. Some common runabout types are bow rider, center console, cuddy boat and walkaround. The world's largest runabout, Pardon Me, is 48 feet long and owned by the Antique Boat Museum in Clayton, New York.
A motorboat, speedboat or powerboat is a boat that is exclusively powered by an engine.
The world unlimited Water Speed Record is the officially recognised fastest speed achieved by a water-borne vehicle, irrespective of propulsion method. The current unlimited record is 511.11 km/h (317.59 mph), achieved by Australian Ken Warby in the Spirit of Australia in 1978.
Garfield Arthur "Gar" Wood was an American inventor, entrepreneur, and championship motorboat builder and racer who held the world water speed record on several occasions. He was the first man to travel over 100 miles per hour on water.
Selwyn Francis Edge (1868–1940) was a British businessman, racing driver, cyclist and record-breaker. He is principally associated with selling and racing De Dion-Bouton, Gladiator; Clemént-Panhard, Napier and AC cars.
The Rolls-Royce R is a British aero engine that was designed and built specifically for air racing purposes by Rolls-Royce Limited. Nineteen R engines were assembled in a limited production run between 1929 and 1931. Developed from the Rolls-Royce Buzzard, it was a 37-litre capacity, supercharged V-12 capable of producing just under 2,800 horsepower (2,090 kW), and weighed 1,640 pounds (770 kg). Intensive factory testing revealed mechanical failures which were remedied by redesigning the components, greatly improving reliability.
A radio-controlled boat is a boat or ship model controlled remotely with radio control equipment.
Miss Britain III is a racing power boat designed and built by Hubert Scott-Paine.
Sir Henry O'Neal de Hane Segrave was an early British pioneer in land speed and water speed records. Segrave, who set three land and one water record, was the first person to hold both titles simultaneously and the first person to travel at over 200 miles per hour (320 km/h) in a land vehicle. He died in an accident in 1930 shortly after setting a new world water speed record on Windermere in the Lake District, England. The Segrave Trophy was established to commemorate his life.
The Harmsworth Cup, popularly known as the Harmsworth Trophy, is a historically important British international trophy for motorboats.
The Supermarine Sea Lion II was a British racing flying boat built by the Supermarine Aviation Works. Designed by Reginald Mitchell, it was a modification of Supermarine's Sea King II. Sea Lion II was powered by a 450 hp (340 kW) Napier Lion engine.
The Supermarine Sea Lion I was a British racing flying boat designed and built by Supermarine for the Schneider Trophy contest at Bournemouth, England, in September 1919. It was based on a version of the Supermarine Baby, the first single-seat flying boat fighter aircraft to be designed and built in the United Kingdom, that first flew in February 1918.
The Supermarine Sea King was a British single-seat amphibious biplane fighter designed by Supermarine in 1919. Developed from the Supermarine Baby and the Supermarine Sea Lion I, the Sea King was a single seater biplane powered by a pusher 160 horsepower (120 kW) Beardmore engine. It first flew in early 1920 and was exhibited by Supermarine at the 1920 Olympia Show in London. The company released drawings of the aircraft's design prior to the show; what it exhibited was probably a modified Supermarine Baby.
Miss England II was the second of a series of speedboats used by Henry Segrave and Kaye Don to contest world water speed records in the 1920s and 1930s.
Miss England III was the last of a series of speedboats used by Henry Segrave and Kaye Don to contest world water speed records in the 1920s and 1930s. She was the first craft in the Lloyds Unlimited Group of high-performance speedboats created to make attempts on the water speed record, and consequently wore the registration 'K1' with the corresponding 'infinity' symbol.
H1 Unlimited is an American Unlimited Hydroplane racing league that is sanctioned by the American Power Boat Association (APBA). Until 2009, the series was known as ABRA Unlimited Hydroplane, in turn renamed from APBA Unlimited Hydroplane in 2004. The H1 Unlimited season typically runs from July through September, consisting of five races.
Blue Bird K3 is a hydroplane powerboat commissioned in 1937 by Sir Malcolm Campbell, to rival the Americans' efforts in the fight for the world water speed record. She set three world water speed records, first on Lake Maggiore in September 1937, then later twice raising her own record.
The Gar Wood Speedster is a model of 16 ft racing boat produced and offered from 1934 to 1938 by Garfield Wood under the "Gar Wood" brand, and powered with various single six-cylinder flathead marine engines. Of the fourteen original Speedsters, three have been widely researched due to their famous owners – "Miss Behave" and "Miss Chief" from 1935, and "Miss Persia" from 1936. Today, more reproduction Speedsters than original boats exist worldwide, with reproductions starting as early as the 1960s.
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