The scale of the figures is OK JR, but their diameter is dubious.....although both NHN and JB claim to have lost weight recently!!!!
Our Saturday lunches together are becoming of concern to our respective wives though, in terms of 'input' ;-). John looks rather more in shape as he's very tall (I'm over 5' 10'' and he's visibly taller) but admits to being at least a stone heavier! Shh, don't tell him I said that.
JABsteam, it has a two speed box which is the original from the 'Simplex' diesel. This is chain driven from the engine to the input shaft. It can be crashed between gears with careful manipulation of the regulator, see the U-Tube link, we changed down at the bottom of the 1 in 33 bank (3%). As it has no clutch (here was no space left apparently!), if the engine stops on a dead centre, we have to engage neutral, turn the engine over slowly and keerrrr-asshh it into gear! The gearbox appears to shrug off this treatment, if it does demise they are fairly easy to come by for not a lot. The slack in the chain drive provides a certain amount of resilience to this.
Oh yeah, it also reverses through the gearbox, the engine (of unknown origin) does not reverse. There is an injector, but also a cracking Worthington-Simpson twin cylinder feedwater pump, that runs really well. The loco burns Welsh steam coal, and is very economical and a good steamer.