I wanted to try and draw Lady as a real engine and see what the
Her dimensions were dictated by her buffers, which would need to
be at the same height as other British rolling stock - from there I came up with an outline for her.
In order to keep the fine lines of the full-size prop and eliminate
bucking I lengthened the wheelbase and made her into an 0-6-0. In the film her boiler is wider than the smokebox, which is
a bit unusual, so I expanded that extra diameter into a saddle-tank similar to a Quarry Hunslet. I also fitted her with the
other bits and bobs you'd see on a steam engine and pieced together a possible backhead arrangement for her.
The Front, Back and Backhead diagrams are all
valid for the 0-4-0 version as well as the 0-6-0 btw. Much of the backhead is based on what we see in the film -
the regulator and reverser are seen in the film in these positions, and a pair of gauge glasses are just in sight ever now
and then - also when Lilly creates a new supply of Gold Dust a shot looking over Lady's cab shows that Lady does indeed have
seats fitted. I added the other bits based on necessity (pressure gauges etc) and theory (since her lights are electric I
reckon Lady has a dynamo hidden under the curved casing on the bunker).