Apart from my OO gauge train all of my other Airfix kits are 1:72 scale... apart from my Bloodhound SAM kit which was in 1:76 scale (in other words OO scale). As i had a few spare people from that kit i decided to use them on the train. A quick and free way to get a bit of a crew. I added a crew to the locomotive and a guard to the brake van. I also gave the guard a trusty dog to help him keep watch!