This class of engines were designed and built to answer a request from the traffic department for
more 8750 engines. Allegedly the Board wanted a more modern looking engine so Hawksworth
set to and designed and built the last GWR engine, the later 1500 Class were BR built. Large
numbers of the engines were built by sub-contractors and some of these engines had boilers
supplied by Swindon. Not all the design changes were successful. The wider cab made it harder
for the driver to reach the brake handle while shunting and the change from coil springs on the
rear axle to underhung leaf springs made the ride more lively. The engines were built as follows:
A photograph of your chosen locomotive is recommended when sorting these variations.
Rivets The locomotives built by R Stephenson have a different pattern of rivets
on the two horizontal rows at the base of the bunker. Some Yorkshire
Engine Co. locomotives are the same.
Some engines (9410 & 9411) appear to
have no lines of rivets on the cab and bunker.
Cylinder Sloping Front Cover
Locomotives appeared with and without this cover.
Rear Buffer Beam Footstep
The lower footsteps for the bunker were either attached to the
rear of the hanging plate or to the rear buffer beam. Some locomotives had the footsteps removed.
Chimneys Some of the contractor-built locomotives have a chimney with a sharper rim. It is not possible yet to provide such a chimney.
Wheels
Driving wheels 4' 7" dia. 14 spokes, 10" pin between, 3/16" diameter axle (3) Slater's Ref. 7855WP
A Scale 7 wheel set is available from the Scale 7 Group stores.
Motor/ Gearbox
A Canon motor with a SDMP 40L/15 gearbox (available from Finney7)
Crankpins
Steel crankpins are available from Finney7.
Inside Motion A separate kit is available from Finney7 to construct the working inside motion.
To obtain a pdf copy of the instructions please click on the link below; the pdf will open in a new window.