Up dated 2020
3D print of this engine is now available at Model Engine Works on Shapeways.
3D print of this engine is now available at Model Engine Works on Shapeways.
One type of engine that sums up a typical Welsh narrow gauge engine to me, is the
small saddle tank such as the Kerr Stuart 0 4 2 Edward Thomas.
This was built for the Corries railway and later moved to Talyllyn when
the Corries line closed.
When my interest in 009
was rekindled a few years ago after a long lapse, I
started scratch building rolling stock and engines like my original ones, and
after a little practice I decided to have a go at my own version of
Edward Thomas. As I was looking to build something in this
style rather than recreating the actual engine, there were
possibilities to make a few changes to the model and still keep the look and spirit
of that style of engine.
I got as many reference pictures as I could
find together and also one of the Kato 11-104 chassis. These
are very good when getting into building 009 narrow gauge engines
as they are so reliable and
inexpensive.
I started by making a mock-up
footplate, to get the right sized opening to fit
the chassis. Once I had that sorted I made a few scale
drawings of the bodywork, using the pictures as
guidance. To get the cab to look lower than the foot plate it was
necessary to cheat, by adding sides to the foot plate inside the cab
entrance. I planned to disguise these by painting them matt black.
My plan to hide the chassis was to add part
side plates and show the rear wheel like the pony wheel on the actual
engine. I must admit this is not my idea,
but a really good solution. I had seen it on a blog post by a fellow
modeller Michael Campbell who used it on his Kerr Stuart Skylark:
To make the body I printed some paper
patterns - these were temporally fixed to various
thickness of plasticard with Pritt stick. This
holds them long enough to cut out and the paper then just
peels off afterwards. The saddle tank was the most complex bit to form, I made
a series of formers and linked them together at the base,
and then using two thin plasticard laminations
over them I formed the upper skin of the
tank. I did the same with the smoke box.
The chimney was made using lime
wood and turned in the chuck of a small electric drill.
If I had known about the “Gem 9104”
white metal OO-9/ Industrial Loco Fittings beforehand
I would have used one of these chimneys. I know for next time now.
The smoke box door was made up of several
discs of plasticard sanded to shape whilst the hinges and
handles were added using spare bites
from an Airfix 040 saddle tank kit. I formed the spectacle windows by drilling
an oversized hole and lining this with strips of thin plasticard
sheet to give the impression of a brass frame when painted. I
made use of a pair of vacuum pipes from a Vale of Rheidol
coach that I had spare.
To further hide the footplate side I used a
Dapol track side figure: I shortened one of the
legs to fit on the footplate inside the cab,
and the other one which is seen was thinned down on the
inside to look as though standing at the edge of the cab step. This
made the figure look to be standing on a lower level footplate.
I made the lamps in bulk some time ago using
white 1 mm thick plasticard rectangles to form a 3 x 2 x 2mm block
and then added a 2 diameter x 1mm disk on top. For the lenses I used a small
2mm clear or red rhinestone.
The paint was a mixture of various
Humbrol greens with a final coats of matt adding to
the footplate and smoke box, then satin varnish
added over the other painted areas. I used real
crushed coal in the bunker – you need to get this almost
like dust at this scale to look right. The finishing touch
was a set of name and works plates from Narrow Planet who
do the complete set for Edward Thomas.
Although not the best model of this engine
you may find, I am pleased with the result-it
has been a good practice run for me. I'm thinking
of getting an N-Drive Productions chassis for my next attempt at
this or a similar engine.
http://www.n-driveproductions.com
This engine based on the Kerr Stuart “Tattoo
Class” is now available as a
3D print to run on the readily
available Kato 11-104 chassis. It has separate footplate body and roof to
allow for interior details to be added, there are also a pair of simple
couplings printed under the footplate of the model.
Additional details will be needed to complete the model as shown, these include smokebox door handles, cab side handrails and working lamps.
Additional details will be needed to complete the model as shown, these include smokebox door handles, cab side handrails and working lamps.
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| © 2020 David Hurst All Rights Reserved |
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© 2019 David Hurst
All Rights Reserved
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If you would like a 3D print of this model
visit Shapeways at:
