View source for British Rail Class 12

{{Infobox Locomotive
|name = British Rail Class 12
|powertype = Diesel-electric
|image = 
|caption = 
|roadnumber = 15211–15236
|builder = [[British Railways]]’ [[Ashford Works]]
|builddate = 1949–1952
|ordernumber = SR 3413 (15), 3537 (11)
|totalproduction = 26
|gauge = {{RailGauge|ussg|lk=on|al=on}}
|primemover = [[English Electric diesel engines|English Electric 6KT]]
|transmission = DC generator, DC traction motors, double reduction gearing
|tractionmotors = [[English Electric]] 506A, 2 off
|whytetype = [[0-6-0]]
|uicclass = C
|wheeldiameter = {{convert|4|ft|6|in|m|3|abbr=on}} 
|minimumcurve = 
|trainbrakes = None; 15230–15232 Air from 1970
|locobrakeforce = 
|wheelbase = {{convert|11|ft|6|in|m|2|abbr=on}} 
|length  = {{convert|29|ft|5+1/2|in|m|2|abbr=on}}    
|width   = {{convert|9|ft|0|in|m|2|abbr=on}}     
|height  = {{convert|12|ft|8+1/2|in|m|2|abbr=on}}   
|locoweight  = {{convert|48|LT|sigfig=3|lk=on}}
|topspeed = {{convert|27.5|mph|km/h|1|abbr=on}}
|poweroutput = ''Engine:'' {{convert|350|hp|0|abbr=on|lk=on}}
|tractiveeffort = ''Maximum:'' {{convert|24600|lbf|kN|1|abbr=on|lk=on}}
|fuelcap = {{convert|660|impgal|abbr=on|lk=on}}
|trainheating = None
|multipleworking = Not fitted
|axleloadclass = [[Route availability|RA]] 5
|railroad = [[British Railways]] 
}}

The [[British Rail]] '''Class 12''' is a [[diesel locomotive]] built mainly for [[Switcher|shunting]] duties. 

This was the second batch of standard [[Southern Railway (Great Britain)|Southern Railway]] shunters based on the [[English Electric]] 6KT 35 hp (260kW) diesel engine.  These locomotives (BR numbers 15201-15203) were built by the SR in 1937 and were later classified [[British Rail Class D3/12|D3/12]]. 

The Class 12 locomotives were built at the [[Ashford railway works|BR Ashford Works]] over the period 1949–1952. They were numbered 15211–15236 and became Class 12. No locomotives survived long enough to acquire Class 12 [[TOPS]] numbers though.

{{British Rail Locomotives}}


{{Transport-stub}}

[[Category:British Rail diesel locomotives|12]]