The name that will appear above the top line of the infobox. If it is the name of a specific locomotive, then it should be in italics.

Example

LNER Class A3 4472 ''Flying Scotsman''

Background colour for title row (as hex colour triplet without the leading #

Example

eeb47f

Colour of text in title row, as a hex triplet withou the leading #

Example

FFFFFF

The filename for the infobox image.

The size of the image in pixels (default is 300)

alternative text for the image, displayed when the image cannot be shown (such as for visually impaired users, or for spoken articles)

The caption for the image

A label-less centered text field for notices that appears near the top of the infobox

The type of power that the locomotive employs

Example

Steam, Diesel-electric, Diesel-hydraulic, Electric, Electro-diesel

The name of the locomotive's designer

The locomotive builder or manufacturer

The locomotive's order number(s)

The locomotive's serial number(s). (not the fleet number - see below)

The builder's model number

The date(s) that the locomotive (or locomotive model) was built. Use {{Start date}} (and {{End date}} where applicable).

The total number of locomotives of the given class or type that were built

The locomotive rebuilder

The date(s) that the locomotive (or locomotive model) was rebuilt

The total number of locomotives of the given class that were rebuilt

no description

The wheel arrangement in Whyte notation

Example

[[4-6-2]]

The AAR wheel arrangement

Example

C-C

The UIC classification of locomotive axle arrangements

Example

2′C1′ , Co′Co′

The British and Commonwealth classification of locomotive axle arrangements for electric and diesel-electric locomotives

Example

Co-Co

German locomotive ''Gattung'' (type) classification

Example

S 36.20, P 35.17

The coupled axle being driven by the piston (steam) or engine (diesel)

Example

3rd coupled axle

The track gauges on which the locomotive operated; use the {{track gauge}} template

Example

{{track gauge|1435 mm}}

USA terminology: The type of trucks

Example

Blomberg M

British terminology: The type of bogies

Example

BR Mk 1

The diameter of the locomotive's leading wheels

Example

{{convert|36|in|mm|0|abbr=on}}

USA terminology: The diameter of the locomotive's driving wheels

Example

{{convert|70|in|m|3|abbr=on}}

British terminology: The diameter of the locomotive's coupled wheels

Example

{{convert|6|ft|2|in|m|3|abbr=on}}

The diameter of the locomotive's wheels, for diesels and electrics

Example

{{convert|40|in|m|3|abbr=on}}

The diameter of the locomotive's trailing wheels

Example

{{convert|42|in|m|3|abbr=on}}

The diameter of the tender's wheels

Example

{{convert|38|in|m|3|abbr=on}}

Diameter of non-driving wheels that help carry the weght of the locomotive – only use if "leadingdiameter" and/or "trailing diameter" are inappropriate.

Example

{{convert|42|in|mm|3|abbr=on}}

The minimum radius curve that the locomotive will negotiate. North American practice would use degrees of curvature

The locomotive's total wheelbase

To describe trucks/bogies or coupled wheels with asymmetrical wheel spacing

The engine's wheelbase, tender excluded

The wheelbase of the leading truck/bogie

USA terminology: The wheelbase of the driving wheels

British terminology: The wheelbase of the coupled wheels

The wheelbase of the trailing truck/bogie

USA terminology: The wheelbase of each truck on diesels and electrics

British terminology: The wheelbase of each bogie on diesels and electrics

The wheelbase of the tender

USA terminology: The wheelbase of each tender truck

British terminology: The wheelbase of each tender bogie

distance between outermost wheelsets

Example

{{convert|16200|mm|in|frac=4|abbbr=on}}

Wheelbase of a steam locomotive with its tender

Example

{{convert|15100|mm|ftin|frac=4|abbr=on}}

Type of rack system used

Example

Abt, Riggenbach

Garratts, diesels and electrics: distance between engine unit or bogie pivot centres

DEPRECATED – use pivotcentres instead

Electrics: distance between pantograph shoe centres

The locomotive's total length, tender included

The length between the coupler faces

length over the headstocks

Example

{{convert|20795|mm|ftin|frac=4|abbr=on}}

DEPRECATED – use ''over headstocks'' instead

The length of the locomotive body (diesels and electrics)

The length measured over the buffer faces

Example

{{convert|22095|mm|ftin|frac=4|abbr=on}}

The locomotive's total width

An electric locomotive's height, including pantographs in the stowed position

An electric locomotive's body height, discounting the pantographs

The locomotive's total height

The type of locomotive frame

Example

"Plate frame", "Bar frame" or "Cast frame"

maximum axle load (average, or the load on the axle(s) which carry the greatest load)

The load on the leading bogie or pony axle

Use when the load on all coupled wheels are the same

The load on the 1st coupled axle

The load on the 2nd coupled axle

The load on the 3rd coupled axle

The load on the 4th coupled axle

The load on the 5th coupled axle

The load on the 6th coupled axle

The load on the 7th coupled axle

The load on the 8th coupled axle

The load on the trailing bogie or pony axle

The axle load per tender bogie

The axle load per individual tender axle

The weight on the driven wheels only

weight of the loco without fuel, water, sand or lubricants

Example

{{convert|82.50|t}}

DEPRECATED

weight in working order, with supplies

Example

{{convert|89.20|t}}

The weight of the locomotive in working order (excluding tender)

The weight of the locomotive's tender in working order

The combined weight of the locomotive and tender in working order

The type of tender; typically the number of axles, the designer, or (where issued), the class of tender

The type of fuel that the locomotive consumes

Example

"Wood", "Coke", "Coal", "Oil"

The locomotive's full fuel capacity

Lubrication oil capacity

Engine coolant capacity

The tender's full water capacity

The tender's full fuel and water capacity

The locomotive's full sandbox capacity

The locomotive's average fuel consumption rate

The locomotive's average water consumption rate

no description

The electric system(s) under which the locomotive operates

Example

1500 V DC, 3 kV DC, {{15 kV AC}}, {{25 kV 50 Hz}}

The locomotive's electrical current collection method

Example

Pantographs from catenary, Contact shoe from third rail

Model of prime move (engine) in the locomotive

Example

[[Alco 251]], [[EMD 645]]

RPM range of the prime mover

Example

250–1000 rpm

The RPM of the prime mover at low idle

The RPM of the prime mover at normal idle

DEPRECATED – use "rpmrange", "rpmrange low", "rpmrange idle", or "rpmrange max"

The RPM of the prime mover at full speed

Type prime mover in the locomotive

Example

Four-stroke diesel engine

Type/model of aspiration

Example

Normally aspirated, Roots-type supercharger, Turbocharger

Displacement of prime mover

Type/model of alternator, if fitted

Type/model of DC generator, if fitted

Type/model of traction motors

The one hour traction motor rating

The continuous traction motor rating

type/rating of HEP or Electric Train Supply (ETS)

Type of firebox

Example

Radial stay, Belpaire, Wooton, etc

The area of the locomotive's fire grate

Example

{{convert|90|sqft|m2|abbr=on}}

Model of boiler

Example

LNER diagram 100A

The boiler type

Example

Domeless, etc

The height of the boiler centreline above the railhead

inside diameter of the boiler

inside length of the boiler (distance between the tube plates)

diameter (and quantity) of the small boiler tubes

Example

{{convert|54|mm|in|frac=16|abbr=on}}, 130 off

diameter ( and quantity) of the flues (a.k.a. large boiler tubes)

Example

{{convert|138|mm|in|frac=16|abbr=on}}, 35 off

DEPRECATED – use "smalltubediameter"

DEPRECATED - use "largetubediameter"

DEPRECATED – use "lengthinside"

Normal working pressure of the boiler

Type of safety valves fitted

Example

Salter, Ramsbotton, Ross Pop

Type of feedwater heater, if fitted

Example

ACFI, Elesco, Worthington BL

heating area of the sides and roof of the firebox (not the area of the grate!)

DEPRECATED – use "fireboxarea"

heating area of the small tubes

heating area of the arch tubes or thermic syphons

heating area of the flues (the large tubes the superheater elements fit into)

heating area of the tubes and flues (if not broken out in sources)

total heating area of the boiler

DEPRECATED – use "totalsurface"

type of superheater (if fitted)

Example

Schmidt, Robinson, Elesco, Type A, Type E

heating area of the superheater (if fitted)

Number of cylinders

Example

2, 3, 4, 6

Bore × Stroke of the locomotive's cylinders

Example

{{convert|20|x|26|in|mm|abbr=on}}

no description

no description

Bore × stroke of the high pressure cylinders of a compoud locomotive

Bore × stroke of the low pressure cylinders of a compoud locomotive

Stoke of the cylinders' pistons (where not already included in "cylindersize")

diameter of the bore of the cylinders driving the rack cog

length of the stroke of the cylinders driving the rack cog

pressure rating of the low-pressure cylinders' receiver

the type of valve gear used on steam locomotives

Example

[[Stephenson valve gear|Stephenson]], [[Walschaerts valve gear|Walschaerts]]

The type of valves used on steam locomotives

Example

Slide, piston, poppet

the length of the valve travel

the length of the valve lap on a steam locomotive

the length of the valve lead on steam locomotives

The type of transmission used on a locomotive

Example

Diesel-electric, hydraulic, mechanical

number of throttle notches in a diesel of electric locomotive

Example

"4", "8", "21"

technology used to move between throtle noches

Example

"mechanical", "thystor", "Insulated-gate bipolar transistor"

the gear ratio of the tracktion motors

Example

62:19

the type of multiple working, if fitted

Example

Blue Star, Red Diamond, AAR

DEPREACTED – use "multipleworking"

The train heating system used

Example

[[Steam generator (railroad)|Steam generator]], [[Head-end power]], none.

The type of brakes installed in the locomotive

Example

Vacuum brake, Air brake

The type of brakes the locomotive can operate on a train

Example

Vacuum brakes, Air brakes

DEPRECATED – use "locobrakes" or "trainbrakes"

DEPRECATED – use "locobrakes" or "trainbrakes"

DEPREACTED – use "safety"

The main air reservoir capacity

The air compressor capacity at high idle

The vacuum exhauster capacity at high idle

The safety systems installed

Example

auto train stop, cab signalling

The type of coupling system

Example

Buffers and chain coupler, Janney coupler, Scharfenberg coupler, SA-3 coupler

The locomotive's maximum permitted speed

Example

{{convert|100|km/h|mph|0|abbr=on}}

The locomotive's total power output

Example

{{convert|3000|PS|kW hp|sigfig=3|abbr=on}}

Theoretical power out of a steam locomotive based on its dimensions

Example

{{convert|1970|PS|kW hp|sigfig=3|abbr=on}}

DEPRECATED – use "poweroutput", "poweroutput start", poweroutput 1 hr" or "poweroutput cont"

The locomotive's starting motor rating

Example

{{convert|3000|PS|kW hp|sigfig=3|abbr=on}}

The locomotive's one hour motor rating

Example

{{convert|3000|PS|kW hp|sigfig=3|abbr=on}}

The locomotive's continuous motor rating

Example

{{convert|3000|PS|kW hp|sigfig=3|abbr=on}}

Power to weight ratio

Example

28.0 kW/t

The locomotive's total tractive effort

Example

{{convert|40300|lbf|kN|2|abbr=on}}

The locomotive's starting tractive effort

Example

{{convert|40300|lbf|kN|2|abbr=on}}

The locomotive's one hour tractive effort

Example

{{convert|40300|lbf|kN|2|abbr=on}}

The locomotive's continuous tractive effort

Example

{{convert|40300|lbf|kN|2|abbr=on}}

The locomotive's rate of acceleration (with a stated load)

Deceleration rate

Example

The locomotive's rate of deceleration (with a stated load)

Factor of adhesion (weight on drivers divided by tractive effort)

Example

4.00

The locomotive's starting factor of adhesion

Example

4.23

The locomotive's one hour factor of adhesion

Example

4.05

The locomotive's continuous factor of adhesion

Example

3.96

The braking force supplied by "locobrakes"

The locomotive's dynamic brake peak effort

The operator(s) (railroad/railway/industry/company) who used the locomotive (for articles about individual locomotives and not generic locomotive models)

Example

[[Northern Pacific Railway]], [[Midland Railway]]

The class designation assigned by the locomotive's operator

Example

NP W-1, GWR 4073, BBÖ 81

The power class or group of the locomotive

Example

Midland Railway 4F, GWR C, Est series 8

The number of locomotives in the same railroad/railway/industry/company class

Example

22, 5th of 72

The operating number(s) assigned by the operator

Example

LNER 4472, BBÖ 214.01 – 214.13

The official name(s) assigned by the operator, and who or what the locomotive is named after

Nicknames given to the locomotive

The axle load class or group (e.g. Great Western Railway colour code, LNER/British Railways Route Availability "RA")

Example

GWR Red, LNER/BR RA 7

The locale where the locomotive was operated

Example

Mariazell Railway

The date that the locomotive was delivered

The date of the locomotive's first run

The date of the locomotive's last regular operation

The date the locomotive was retired from regular service

Example

1956–1968

Commonwealth English equivalent of retiredate above

Example

1960–1962

Quantiry and fleet numbers of and preserved units (with links to articles)

Example

"Three: ÖBB 78.606, 78.618, 78.625"

The date the locomotive was restored to operating condition

The date the locomotive was scrapped

The locomotive's current owner

Example

National Railway Museum, ÖGEG

The locomotive's current disposition

Example

"All scrapped", "Four preserved, remainder scrapped"

text box for infobox footnotes if needed