Number 3440 City Of Truro is a Great Western Railway (GWR) 3700 (or 'City') Class 4-4-0 locomotive, designed by George Jackson Churchward and built at the GWR Swindon Works in 1903. City of Truro was timed at 8.8 seconds between two quarter-mile posts whilst hauling the "Ocean Mails" special from Plymouth to London Paddington on 9 May 1904. This timing was recorded from the train by Charles Rous-Marten, who wrote for The Railway Magazine and other journals. If exact (Rous-Marten's stopwatch read in multiples of 1/5 second), this time would correspond to a speed of 102.3 mph (164.6 km/h), while 9 seconds would correspond to exactly 100 mph. Read more