|
|- !colspan="3" style="background:lightgrey; color:#ffffff" align=center | Lightweight 250 cc |- |colspan=2 align=center| |} The 1957 Isle of Man Tourist Trophy was the Golden Jubilee event and the second race in the 1957 Motorcycle World Championships. The first event was the 350cc 1957 Junior TT race held on the Snaefell mountain course. The race was initially led by Bob McIntyre riding a Gilera motorcycle who beat the lap record for the Junior TT race from a standing start in 23 minutes and 14.2 seconds, an average speed of 97.42 mph and 42 seconds faster than the lap record set by Ray Amm in the 1954 Junior TT Race.〔''Isle of Man Weekly Times'' dated 7 June 1957〕 On lap 1, John Surtees riding for MV Agusta had to stop at the pits to change a spark plug, followed by Bob McIntrye who had to change a plug on the end of lap 2. The delay to McIntyre handed the lead to Dickie Dale riding a Moto Guzzi Grand Prix single-cylinder and led John Hartle riding a Norton in 2nd place by 22.2 seconds and Bob McIntyre in 3rd place by 24.6 seconds. A delay in the pits on lap 3 for Dickie Dale of 3 minutes and 38 seconds to replace a smashed windscreen allowed Bob McIntyre to regain the lead.〔''TT Special'' edited by G.S.Davison dated 3 June 1957〕 An engine failure on lap 4 at Quarry Bends to the Norton of Jackie Wood, caused Dale and Hartle to crash on engine oil left on the road. This allowed Bob McIntyre to comfortably win the 1957 Junior TT Race at an average speed of 94.99 mph.〔 The 1957 Lightweight TT Race held on the Clypse Course was over 10 laps and 107.90 miles and was dominated by Cecil Sandford riding for the F.B.Mondial marque and team-mate Sammy Miller. By lap 2, Sandford led Miller by 2 seconds and Tarquinio Provini, also riding for Mondial, in a distant 3rd place. By lap 7, Miller had caught up and on lap 9 passed Sandford between the Creg-ny-Baa and Ballacoar Corner for the lead. At Governor's Bridge on the last lap, Miller slipped off his Mondial, allowing Sandford to win the 1957 Lightweight TT Race at an average race speed of 75.80 mph from the MV Agusta pair of Luigi Taveri and Roberto Colombo. An exhausted Miller is forced to push-in his Mondial to finish in 5th place. Despite a rain shower between races, the 1957 Ultra-Lightweight TT on the Clypse Course was a more closely contested race. At Parkfield Corner on lap 1, Luigi Taveri riding for MV Agusta led the Mondial of Sammy Miller, while Tarquinio Provini riding for Mondial and Carlo Ubbiali on a MV Agusta were in the mid-field chasing pack. At the Creg-ny-Baa on the first lap, Ubbiali caught up to the leaders to take 3rd place with Tarquinio Provini in 4th place, until Provini passed Ubbiali for 3rd place on the Whitebridge Hill on the end of the 1st lap of the Clypse Course. By the end of lap 2, Provini passed both Taveri and Miller for the lead and by the end of the 3rd lap had a 13-second lead and set the fastest lap of the race of 8 minutes and 41.8 seconds an average speed of 74.44 mph and won the 1957 Lightweight TT Race at an average race speed of 73.69 mph. On lap 8 at Hall Corner, Luigi Taveri slipped off his MV Agusta, but contuined on and was passed by Ubbiali at Parkfield Corner on lap 9. The last lap is contested by Taveri in a "slipstream dog-fight"〔''The Motor-Cycle'' dated 13 June 1957〕 for 3rd place which is won by Lugi Taveri by less than 1 second from Miller and Sandford. The 10 lap 1957 Sidecar Race also held on the Clypse Course was led from start to finish by the BMW outfit of Fritz Hillebrand and Manfred Grünwald. In 2nd place was Walter Schneider/H.Strauss, also with a BMW sidecar. The Norton outfit of Cyril Smith and E.J.Bliss passed the other works BMW outfit of Florian Camathias/J.Galliker on lap 4. At the Manx Arms on the last lap, the Norton of Smith and Bliss suffers big-end failure allowing Camathias and Galliker to retake 3rd place and give BMW a 1-2-3 victory in the 1957 Sidecar TT Race.〔''The Motor-Cycle'' dated 13 June 1957.〕 There was high expectations for the Blue Riband race of the Golden Jubilee TT with the 8 lap (301.86 miles) 1957 Senior TT Race. As Geoff Duke had been injured at Imola〔''Official TT Race Guide'' 2006〕 at an Easter race meeting the works ride in the factory Gilera team had passed to Bob McIntyre.〔''British Racing Motor-Cycles'' by Mick Woollet〕 During the 1955 Isle of Man TT, Duke was credited with the first lap of the Snaefell mountain course at an average speed of 100 mph. This was later revised by the official time-keepers at the TT Grandstand to 99.97 mph.〔''Official Isle of Man TT Race Guide'' 2005〕 The 1957 Senior TT race was led by Bob McIntyre riding for Gilera and he beat the overall lap-record from a standing start in 22 minutes and 38.4 seconds at an average speed of 99.99 mph and was 0.6 seconds faster than the lap record set by Geoff Duke in the 1955 Senior TT Race.〔''Isle of Man Weekly Times'' dated 12 June 1957〕 The main rival for winning the Senior TT race is John Surtees riding for MV Agusta who posts a time of 23 minutes and 17.4 seconds an average speed of 97.20 mph on the first lap. On the flying second lap, Bob McIntyre laps the Mountain Course in 22 minutes and 24.4 seconds an average speed of 101.03 mph, breaking the overall lap record and the first 100 mph lap. The feat is again repeated on the 3rd lap at an average speed of 100.54 mph and the 4th and 6th lap at an average speed of 101.12 and 100.35 mph respectively.〔''Isle of Man Weekly Times'' dated 12 June 1957〕 By lap 4, Bob McIntyre led the 1957 Senior TT Race from John Surtees by 2 min and 10.2 seconds and is only 9.8 seconds behind Surtees on the road. By the end of lap 4, Bob McIntyre passed John Surtees on the road. However, Surtees repassed Bob McIntyre on the road on the Mountain Section as the Gilera team gave McIntyre signals to the slow the pace. The 1957 Senior TT Race was eventually won by Bob McIntyre in 3 hours, 2 minutes and 57.2 seconds at an average speed of 98.99 mph.〔''Isle of Man Weekly Times'' dated 12 June 1957〕 The record breaking Senior TT Race and the Golden Jubilee celebrations were marred by the death of Charlie Salt who crashed a BSA motorcycle at Ballagarraghyn Corner and was killed during the later stages of the 1957 Senior TT Race.〔 ==Race results== 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「1957 Isle of Man TT」の詳細全文を読む スポンサード リンク
|