No.17 Hartfield


Hartfield was built in 1999 by Martin Colbourne in the workshops of the Moors Valley Railway and represents the updated development of the narrow gauge tank engine design pioneered by Jim Haylock.

Hartfield is a 2-4-4T with 3½″ cylinders, fitted with 8½″ driving wheels and the boiler pressure increased to 130 psi. Tractive effort is 667 lbs which is three times that of the original Tinkerbell concept.

Hartfield is a regular performer here at the railway often being the engine of choice alongside Jason for winter running.

Hartfield’s name is derived from the stories of Winnie the Pooh, Hartfield being the village in Sussex where the stories are set.

The red livery is based on the Midland Railway’s colours.

  • Builder: M Colbourne, 1999
  • Dimensions: length 91″ x width 27″ x height 47″
  • Wheel diameters: leading 6″, driving 8½″, trailing 6″
  • Number of tubes: 22x 1″ diameter
  • Grate area: 91 in2
  • Coal capacity: 112 lbs
  • Water capacity: 12 gallons
  • Boiler diameter: 12¾″
  • Boiler pressure: 130 psi
  • Valve gear: Walschaerts
  • Cylinder bore: 3½″
  • Cylinder stroke: 4¼″
  • Tractive effort: 667 lbs
  • Livery: Midland Railway Red