4-2-2 Class 3031 Dean Single GWR Profile and Models

4-2-2 Class 3031 Dean Single GWR

No. 3050 'Royal Sovereign' in photographic grey condition. Unknown Date. © Public Domain

The GWR 3031 Class (aka the Dean Single or Achilles class) were a fleet of 4-2-2 locomotives designed by William Dean for use on GWR passenger services. The first examples of the class were produced as convertible broad gauge locos and were later converted to standard gauge operation. The first 30 were originally built as 2-2-2 locos but due to various issues, they were rebuilt as 4-2-2s, with a later batch of 50 built from the ground up with the latter configuration. Despite their speed, the class were found to be outdated and unsuitable for modern operations in the 1900s, so they were soon withdrawn from service - with the final loco 3074 “Princess Helena” bowing out in 1916.

Type of Locomotive




Build Date

1891 to 1899

Total Built


Tractive Effort

14,253 lbf

Wheel Configuration


Operated By


Main Duties

Passenger Services

In Service Until


Surviving Examples

0  (Original)
(1 Replica built)


OO Gauge (1:76 Scale)
trainModels Produced
Logo for Hornby

DCC compatible but no socket. Complete rewire required - OO
format_paintLiveries Produced
View All Products Produced

Products awaiting categorisation

Scale Brand Image Construction Type DCC Capability Product Code Product Title Livery
OO Gauge (1:76 Scale) Keyser (K's) ML-5 GWR Dean Single 3031 4-4-2 Loco and Motorising Kit Not set Not set ML-5
GWR Dean Single 3031 4-4-2 Loco and Motorising Kit Awaiting Categorisation
1:130 Scale Matchbox No image available RTR/RTUse/Pre-assembled Not set Y14Duke
1903 4-2-2 locomotive 'Duke of Connaught' in green GWR green