What is British Rail Class 04?
{{Infobox Locomotive |name = British Rail Class 04 |powertype = Diesel-mechanical |image = D2298 at the Buckinghamshire Railway Centre 1.jpg |caption = D2298, as preserved at the [[Buckinghamshire Railway Centre]].<BR>(NB - few examples were given any form of blue livery while in service with British Railways)<!--trying to highlight that livery may not be authentic for this loco, nor representative for the class as a whole--> |roadnumber = D2200–D2341 |builder = [[Drewry Car Co.]], at [[Vulcan Foundry]] and [[Robert Stephenson and Hawthorns]] |builddate = 1957–1962 |gauge = {{RailGauge|ussg|lk=on}} |primemover = [[L Gardner and Sons Ltd|Gardner]] 8L3 |transmission = Wilson-Drewry 5 speed [[epicyclic gearbox]] |whytetype = 0-6-0 |uicclass = C |wheeldiameter = ''D2200–D2214:'' {{convert|3|ft|3|in|m|3|abbr=on}}<br>''D2215–D2273:'' {{convert|3|ft|6|in|m|3|abbr=on}}<br>''D2274–D2339:'' {{convert|3|ft|7|in|m|3|abbr=on}} |minimumcurve = {{convert|2|chain|m|lk=on}} |trainbrakes = Vacuum |locobrakeforce = {{convert|14|LTf|kN|1|sigfig=3|abbr=on}} |wheelbase = {{convert|9|ft|0|in|m|2|abbr=on}} |length = {{convert|26|ft|0+1/2|in|m|2|abbr=on}} |width = {{convert|8|ft|6|in|m|2|abbr=on}} |height = {{convert|12|ft|1+1/2|in|m|abbr=on}} |locoweight = {{convert|30.2|LT|sigfig=3}} to {{convert|32|LT|sigfig=3}} |topspeed = {{convert|25|mph|km/h|abbr=on}} to<BR>{{convert|27|mph|km/h|abbr=on}} |poweroutput = ''Engine:'' {{convert|204|hp|0|abbr=on|lk=on}}<br>''At rail:'' {{convert|152|hp|0|abbr=on}} |tractiveeffort = ''Maximum:'' {{convert|16850|lbf|kN|1|abbr=on|lk=on}} to<br>{{convert|15650|lbf|kN|1|abbr=on}} |fuelcap = {{convert|225|impgal|abbr=on}} to<BR>{{convert|300|impgal|abbr=on}} |trainheating = None |multipleworking = |axleloadclass = ''D2200–D2214:'' [[Route availability|RA 1]]<br>''D2215–D2340:'' RA 2 |railroad = [[British Railways]] }} The '''British Rail Class 04''' [[0-6-0]] [[diesel-mechanical]] [[shunter|shunting]] [[locomotive]] class was built between 1952 and 1962. It was the basis for the later [[British Rail C