British Rail GT3

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Gas Turbine 3
Type and origin
Power type Gas Turbine mechanical
Builder English Electric at Vulcan Foundry
Serial number Vulcan Foundry: D228
Build date 1958–1961
 • Whyte 4-6-0
 • UIC 2'C
Driver dia. 5 ft 9 in (1.753 m)
Length 68 ft 0 12 in (20.74 m)
Loco weight 79.80 long tons (81.08 t)
Tender weight 44 long tons (45 t)
Prime mover EM27L gas turbine
Transmission Mechanical: flexible drive from gearbox onto middle driving axle
Train heating Steam generator
Performance figures
Top speed 90 mph (140 km/h)
Power output 2,750 hp (2,050 kW)
Tractive effort 38,000 lbf (169.03 kN)
Railroad(s) British Rail
Number GT3
Disposition Returned to VF 1962; turbine removed; scrapped T.W. Ward, Salford, March 1966

GT3, meaning Gas Turbine number 3 (following 18000 and 18100 as gas turbines 1 and 2), was a prototype mainline gas turbine locomotive built in 1961 by English Electric at their Vulcan Foundry in Newton-le-Willows to demonstrate its wares to British Railways. It was designed by Vulcan engineer J. O. P. Hughes and the project had been started in early 1950s. Externally it resembled a steam tender locomotive, although, in the case of GT3, the tender carried diesel fuel.