What is British Rail Class D2/11?
{{Infobox Locomotive |name = British Rail Class D2/11 |powertype = Diesel-electric |image = File:British Steel No.91, (D2999).jpg |caption = D2999 on display at the [[Middleton Railway]] |roadnumber = D2999 (bought); D9998 (loaned) |builder = [[Brush Traction]] and [[Beyer, Peacock & Co.]] |builddate = 1960 |serialnumber = Brush: 99–103;<br>BP: 7857, 7861, 7858–7860 |totalproduction = 5 |gauge = {{RailGauge|ussg|lk=on|al=on}} |primemover = Petter-McLaren LE6 or <br /> National M4AAV6 |tractionmotors = Brush |whytetype = 0-4-0 DE |wheeldiameter = {{convert|3|ft|6|in|m|3|abbr=on}} |minimumcurve = |trainbrakes = None |locobrakeforce = |wheelbase = |length = |width = |height = |locoweight = {{convert|29.90|LT|lk=on}} |topspeed = {{convert|18|mph|km/h|0|abbr=on|lk=on}} |poweroutput = ''Engine:'' = {{convert|180|bhp|kW|0|abbr=on|lk=on}} or <br />{{convert|200|bhp|kW|0|abbr=on}} |tractiveeffort = {{convert|19200|lbf|kN|1|abbr=on|lk=on}} |fuelcap = |trainheating = None |multipleworking = Not fitted |axleloadclass = [[Route availability]] 2 |railroad = [[British Railways]] |railroadclass = |numinclass = 1 |retiredate = ''D2999:'' October 1967 |disposition = ''D2999'' preserved<br>''D2998'' scrapped }} In [[1958]] [[Brush Traction]] Ltd and [[Beyer Peacock]] co-operated to produce five prototype diesel-electric shunting locomotives of [[0-4-0]] [[Whyte notation|wheel arrangement]]. They were intended to demonstrate a new generation of diesel shunters for industrial and mainline use. Two were loaned to [[British Rail]]ways for trials, and one was subsequently purchased by BR. However no large scale orders resulted from these demonstrators. {{British Rail Locomotives}} {{transport-stub}} [[Category:British Rail diesel locomotives|D2/11]] [[Category:Brush Traction locomotives]] [[Category:B locomotives]]