TasRail TR class

{{Short description|Class of Australian diesel-electric locomotives}}

{{Use dmy dates|date=October 2022}}

{{Infobox locomotive

|name = TasRail TR class

|powertype = Diesel-electric

|image = Tasrail-TR16-20160106-001.jpg

|caption =

|builder = Progress Rail, Patterson, Georgia

|buildmodel = PR22L

|builddate = 2013–2014

|totalproduction = 17

|uicclass = Co-Co

|gauge = {{RailGauge|1067mm}}

|bogies = EMD GHC

|wheelbase = {{convert|13610|mm|ftin|abbr=on}} total, {{convert|3632|mm|ftin|abbr=on}} bogie

|length = {{convert|16925|mm|ftin|abbr=on}} over headstocks

|width = {{convert|2900|mm|ftin|abbr=on}}

|height = {{convert|3840|mm|ftin|abbr=on}}

|axleload = {{convert|18|t|LT ST|1|}}

|locoweight = {{convert|108|t|LT ST|1|}}

|fueltype = Diesel

|lubecap = {{convert|151.4|L|impgal|abbr=on}}

|primemover = Caterpillar 3512C HD

|rpmrange = 1900rpm max

|enginetype = Four stroke

|aspiration = Turbocharged, intercooled

|displacement = {{convert|58.6|L|in3|1|}}

|alternator = Kato

|tractionmotors = Electro-Motive Diesel D-43

|cylindercount = V12

|cylindersize = {{convert|170|x|215|mm|in|1|abbr=on}}

|multipleworking = 74V, 8 notch

|maxspeed = {{convert|100|kph}}

|poweroutput = {{convert|1700|kW|hp|0|abbr=on}} gross, {{convert|1492|kW|hp|0|abbr=on}} net

|tractiveeffort = {{convert|272|kN|lbf|1|abbr=on}}

|locobrakes = Air, dynamic

|trainbrakes = Air

|operator = TasRail

|numinclass = 17

|fleetnumbers = TR01-TR17

|firstrundate = November 2013

|lastrundate =

|retiredate =

|withdrawndate =

|preservedunits =

|restoredate =

|scrapdate =

|currentowner = TasRail

|disposition = All in service}}

The TR class are a class of diesel locomotives built by Progress Rail, Patterson, Georgia, United States for TasRail in 2013–2014. They are currently the main Tasmanian locomotive class handling the majority of mainline services across the state.