Looking at the locomotive drawings etc in Resources prompted me to dig out the drawings I developed for the Class 800 from the original. These were done the old way of pen and ink on the drawing board, as CAD was in it's infancy and cost more that a small house to buy, never mind the computer cost.
I worked from the original drawing I requested from IE many moons ago. The drawing was taped to the board, and A1 negatives created from it - there is a huge amount of information on that old drawing, so I took the layers off and made multiple drawings to clarify the detail.
I don't have access to the resources section, but perhaps it's a little early yet as I need to get these scanned / digitised with the intention of bringing them into CAD.
Once they are scanned, perhaps they can be added to the resources section and will be available if anyone wants a copy.
When brought into CAD, we will have more definitive drawings to work with.
Should have added this one as well. It is incomplete but when put with the drawing on the smokebox it provides the detail of the inside motion and fire tubes back to the boiler.