What is British Rail DP1?
{{Infobox Locomotive |name = English Electric ''DELTIC'' prototype |powertype = Diesel-electric |image = English electric deltic at shildon.JPG |caption = The nose end of DP1 at ''Locomotion'' |roadnumber = DP1 |officialname = ''DELTIC'' |builder = [[English Electric]] at Dick, Kerr Works, Preston |builddate = 1955 |serialnumber = EE: 2003 |gauge = {{RailGauge|ussg|lk=on}} |wheeldiameter = {{convert|3|ft|7|in|abbr=on}} |length = 66 ft |primemover = [[Napier Deltic]] D18-25 (2 off) |cylindercount = 18 × 2 | transmission = Diesel Electric |tractionmotors = EE 526/A, 6 off |uicclass = Co'Co' |poweroutput = {{convert|3300|hp|abbr=on|lk=on}} |tractiveeffort = ''90 mph gearing:'' {{convert|60000|lbf|kN|2|abbr=on}}<br>''106 mph gearing:'' {{convert|52500|lbf|kN|2|abbr=on}} |locoweight = {{convert|106|LT|lk=on}} |topspeed = {{convert|90|mph|abbr=on}}<br>{{convert|106|mph|abbr=on}} from 1956 |fuelcap = |trainheating = Stone-Vapor/Clarkson [[steam generator]] |railroad = [[British Railways]] |retiredate = March 1961 |disposition = to [[Science Museum (London)|Science Museum]], London, April 1963 |powerclass = Type 5 }} '''DP1''', or '''Prototype Deltic''' is a demonstrator locomotive built by [[English Electric]] in 1955. This locomotive resulted in 22 similar locomotives being ordered by [[British Rail]], which became their [[British Rail Class 55|Class 55]]. {{British Rail Locomotives}} {{transport-stub}} [[Category:British Rail diesel locomotives|DP1]] [[Category:English Electric locomotives]] [[Category:Co-Co locomotives]] [[Category:Individual locomotives]]