loco-info.com
The reference for locomotives and railcars
Navigation
Random
Search
Compare
Settings
Bengal Nagpur classes N and NM
India | 1929
16 produced
General
Built1929
ManufacturerBeyer, Peacock & Co.
Axle config4-8-0+0-8-4T (Double Mastodon (Garratt)) 
Gauge5 ft 6 in (Indian broad gauge)
Dimensions and Weights
Wheelbase27 ft 6 in
Rigid wheelbase15 ft 7 in
Total wheelbase84 ft 1 in
Service weight524,160 lbs
Adhesive weight357,056 lbs
Axle load45,360 lbs
Water capacity12,009 us gal
Fuel capacity31,360 lbs (coal)
Boiler
Grate area69.8 sq ft
Firebox area286 sq ft
Tube heating area3,118 sq ft
Evaporative heating area3,404 sq ft
Superheater area642 sq ft
Total heating area4,046 sq ft
Power Plant
Driver diameter56 in
Boiler pressure210 psi
Expansion typesimple
Cylindersfour, 20 1/2 x 26 in
Power
Power sourcesteam
Estimated power2,300 hp (1,715 kW)
Optimal speed21 mph
Top speed45 mph
Starting effort69,656 lbf
Calculated Values
steam locomotive
freight
Garratt
Legal Notice
About
Support this project
loading...

We use cookies to save the following settings:

  • selected navigation structure
  • selected language
  • preferred units
  • spelling of railway company names

If you refuse the use of cookies, the settings will only be retained for the current session and will be reset to the default values the next time you visit the site.

Display of units

Here you can set the desired unit system for the technical data.

  • Metric: Lengths in meters, weights in tonnes, and volumes in cubic meters
  • Imperial (UK): Lengths in feet/inches, weights in long tons and volumes in imperial gallons
  • Imperial (US): Lengths in feet/inches, weights in pounds, and volumes in US gallons
  • Individual: Depends on the country of origin of each locomotive
Operator names

Here you can set the display of railway company names.

  • Short: Abbreviation or short form of the name
  • Standard: commonly used name, partially translated to English
  • Complete: full name in local language