What is British Rail Class D16/2?
{{Infobox Locomotive |name = British Rail Class D16/2 |powertype = Diesel-electric |image = 10203 at Bletchley.jpg |caption = 10203 approaching [[Bletchley]], 1954 |roadnumber = 10201–10203 |builder = BR [[Ashford Works]] (2), [[Brighton Works]] (1) |builddate = 1950 (10201/10202)<BR>1954 (10203) |ordernumber = SR Order 3441 |gauge={{RailGauge|ussg|lk=on}} |primemover = [[English Electric diesel engines|English Electric 16SVT]] |tractionmotors = [[English Electric]] 526A, 6 off |uicclass = 1Co'Co1' |wheeldiameter = ''Driving:'' {{convert|3|ft|7|in|m|3|abbr=on}}<BR>''Idling:'' {{convert|3|ft|1|in|m|3|abbr=on}} | minimumcurve = {{convert|4.5|chain|m|lk=in}} |trainbrakes = Vacuum |wheelbase = {{convert|55|ft|6|in|abbr=on}} |length = {{convert|63|ft|9|in|m|2|abbr=on}} |width = {{convert|9|ft|3|in|abbr=on}} |height = {{convert|13|ft|1|in|abbr=on}} |locoweight = {{convert|133|LT|t}} |topspeed = {{convert|90|mph|abbr=on}} |poweroutput = 10201/2: {{convert|1750|bhp|abbr=on}}<br>10203: {{convert|2000|bhp|abbr=on}} | enginehp = 10201/2 {{convert|1750|bhp|abbr=on}}<BR>10203 {{convert|2000|bhp|abbr=on}} | railhp = 10201/2 {{convert|1300|bhp|abbr=on}} |tractiveeffort = 10201/2: {{convert|48000|lbf|kN|1|abbr=on}} |fuelcap = {{convert|1150|impgal|abbr=on}} |trainheating = [[Steam generator]] |multipleworking = |axleloadclass = [[Route availability|RA 6]] |railroad = [[British Railways]] }} '''[[British Rail]]ways Class D16/2''' was a class of prototype [[diesel locomotive]] built by BR at [[Ashford railway works|Ashford Works]] and introduced in 1950–1951, with a third example being introduced in 1954. They had been designed by [[Oliver Bulleid]] for the [[Southern Railway (Great Britain)|Southern Railway]] before the 1948 nationalisation but did not appear until after nationalisation. The [[diesel engine]] and transmission were supplied by the [[English Electric]] company but the Bulleid influence was obvious. The box-like body style closely resembled [[British Rail Cla