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The St John's Short Course was a road-racing street circuit used for the Isle of Man TT held between 1907 and 1910. The races were run in a time-trial format on public roads closed for racing by an Act of Tynwald (the parliament of the Isle of Man) around a circuit starting from the village of St John's, proceeding through Ballacraine, Kirk Michael, Peel and back to St John's The first motorcycle race was held on 28 May 1907 over 10 laps of the Short Course of 15 miles 1,470 yards and was for road-legal touring motor-cycles with exhaust silencers, saddles, pedals and mud-guards.〔''Motocourse History of the Isle of Man Tourist Trophy Races 1907–1989'' by Nick Harris pp11 (1990)(1st Edition) Hazelton Publishing ISBN 0-905138-71-6〕 The startline was situated in St John's with the Short Course based on a number of public roads including the primary A1 Douglas to Peel road, A3 Castletown to Ramsey road and the primary A4 Peel to Kirk Michael ''Coast Road''. The highest point of the course was on the primary A3 Castletown to Ramsey Road at St John's Chapelon the Cronk-y-Voddy straight at 780 ft above sea level. ==History== Motor racing began on the Isle of Man in 1904 with the Gordon Bennett Trial and was originally restricted to touring cars. As the UK Motor Car Act 1903 of Parliament placed a mainland speed restriction of 20 mph on cars, the Secretary of the Automobile Car Club of Britain and Ireland approached the authorities in the Isle of Man for the permission to race cars on public roads.〔''Island Racer'' 2004 pp.112–113 Mortons Media Group Ltd ISSN 1743-5838〕 The Highways (Light Locomotive) Act 1904 gave permission in the Isle of Man for the 52.15 mile Highlands Course for the 1904 Gordon Bennett Trial. For the 1905 Gordon Bennett Car event it was decided to run a trial for motorcycles the day after for a team to represent Great Britain in the International Motor Cycle Cup Races. An accident at Ramsey Hairpin forced-out one of the pre-race favourites and the inability of the motorcycle competitors to climb the steep Mountain Section of the course forced the organisers to use a 25 mile section of the Gordon Bennett Trial course. This ran from Douglas using the primary A5 Douglas to Port Erin road to Castletown, from Castletown to Ballacraine using the A3 Castletown to Ramsey Road and returned to the start at the Quarterbridge in Douglas via Crosby and Glen Vine along the current Snaefell Mountain Course in the reverse direction using the A1 Douglas to Peel road.〔''Island Racer'' 2005 pp64 Mortons Media Group Ltd ISSN 1743-4830〕 During the 1906 International Cup for Motor Cycles held in Austria, the event was plagued by accusations of cheating and sharp practices. During a conversation on the train journey home between the Secretary of the Auto-Cycle Club, Freddie Straight, brothers Charlie Collier and Harry Collier of Matchless Motor Cycles and the Marquis de Mouzilly St. Mars lead to a suggestion for a race the following year for road touring motorcycles based on the car races held in the Isle of Man on closed public roads. The new race was proposed by the Editor of "The Motor Cycle" magazine at the annual dinner of the Auto-Cycle Club held in London on 17 January 1907.〔''Isle of Man TT'' by Charles Deane pp10-11 (1st Edition)(1975) Patrick Stevens Ltd ISBN 0-85059-172-4〕 It was proposed that the races would be run in two classes, with single-cylinder machines to average 90 mpg and twin-cylinder machines to average 75 mpg fuel consumption. To emphasise the road-touring nature of the motorcycles there were regulations for saddles, pedals, mudguards and exhaust silencers. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「St John's Short Course」の詳細全文を読む スポンサード リンク
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