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London & North Eastern class V2 “Green Arrow”
Great Britain | 1936 | 184 produced
No. 40800 “Green Arrow”, the original No. 4771, at the Crewe Open Day in June 2003
No. 40800 “Green Arrow”, the original No. 4771, at the Crewe Open Day in June 2003
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For fast mixed traffic, Gresley took his A1 and A3 Pacifics, shortened the boiler, switched the two-axle leading bogie for a single axle and fitted smaller 6 ft 2 in (1,880 mm) driving wheels. So they still had three cylinders, which were cast in a single piece. The LNER designated these locomotives class V2, while the first one numbered 4771 was named “Green Arrow” after a prominent express goods service.

They became the only successful British 2-6-2 tender locomotives and were not much slower than the Pacifics. Although their axle load of 22 tons limited their area of operation, their most suitable roles were the service with fast goods trains and very heavy expresses. In service they sometimes reached speeds of 90 mph, while one locomotive was even credited to have exceeded 100 mph on a test run.

Between 1936 and 1944, a total of 184 were built in Doncaster and Darlington. They fulfilled very important duties in World War II, but due to the reduced track maintenance the leading bogie had to be replaced by a new one. After less successful experiments with double chimneys in 1960, eight got a Kylchap exhaust. These had performances on par with the Pacifics and were thus called “Super V2”.

However, Thompson's 4-6-0 class B1 had superseded the V2 in mixed traffic and became the new LNER standard locomotive in this role. The V2 were withdrawn between 1962 and 1966. 4771 “Green Arrow” is the only one that was preserved. It was operational until 2008 and is still waiting for a boiler overhaul.

General
Built1936-1944
ManufacturerDoncaster, Darlington
Axle config2-6-2 (Prairie) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length66 ft 5 1/8 in
Wheelbase33 ft 8 in
Fixed wheelbase15 ft 6 in
Total wheelbase56 ft 2 in
Service weight208,544 lbs
Adhesive weight146,944 lbs
Total weight325,024 lbs
Axle load49,280 lbs
Water capacity5,044 us gal
Fuel capacity16,800 lbs (coal)
Power
Power sourcesteam
Estimated power2,350 hp (1,752 kW)
Optimal speed44 mph
Starting effort33,730 lbf
Power Plant
Driver diameter74 in
Boiler pressure220 psi
Expansion typesimple
Cylindersthree, 18 1/2 x 26 in
Boiler
Grate area41.3 sq ft
Firebox area215 sq ft
Tube heating area2,216 sq ft
Evaporative heating area2,431 sq ft
Superheater area680 sq ft
Total heating area3,111 sq ft
Calculated Values
steam locomotive
express
freight
passenger
Herbert Nigel Gresley
last changed: 06/2024
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