Builder: English Electric Company at Vulcan Foundry, Newton le Willows (VF).

Engine:  English Electric 12CSVT of 1300KW (1750 hp) at 850 rpm.

Main Generator: English Electric 822/10G.

Traction Motors: English Electric 538/A.

Maximum Tractive Effort: 247 kN (55500 lbf).

Continuous Tractive Effort:  156 kN (35000 lbf) at 13.6 mph.

Power At Rail: 932 kW (1250 hp).

Full Engine Output: 10-79 mph.

Locomotive Brake Type: Straight air & automatic air.

Train Brake Type: Automatic air & vacuum.

Brake Force: 50 tonnes.

Maximum Permitted Speed: 90 mph.

Minimum Radius Curves: 80.47m (4 ch).

Fuel Tank Capacity: 1690 gallons.

Weight: 108.4 tonnes.

Dimensions: Length 18.75 m (61 ft 6 in). Width 2.74 m (9 ft). Height 3.94 m (12 ft 11 in).

Wheel Diameter: 1092 mm (3 ft 7 in).

Wheelbase: 15.44 m (50 ft 8 in).

Bogie Centres: 11.33 m (37 ft 2 in).

Multiple Working: Blue Star Coupling Code.

Route Availability: 5.

Works Number: 3511/D942.

Year Into Service: 1965.

Last Classified Repair: 03.84 BREL (British Rail Engineering Ltd) Crewe Works (ZC).

Last Allocated Depot: Cardiff Canton (CF).