Screw It! Let's Go - Tumblr Posts
So the other night my brother and I started brainstorming a somewhat Choo Choo Charles inspired Thomas & Friends AU where almost everything is the same, except the trains have legs...
And I've done a bit of concept drawing




The point of these sketches were basically just to flesh out the proportions/structure of a handful of the character's hypothetical legs
I've also decided to give each type of vehicle legs that match a general species group, such as: The mainline steam engines will have mammalian legs akin to big cats or dogs (e.g, lions, wolves, foxes, etc), diesel engines will have somewhat bug-like legs, narrow gauge engines will have hoofed goat-like legs since they generally traverse mountainous areas, flying vehicles will have avian (bird-like) legs, water traversing vehicles will have fins or flippers, and road vehicles' legs will likely fall into a more ambiguous species category
There are a few exceptions to this rule, such as Duck having avian legs (I couldn't resist taking his name literally) or Salty having reptilian legs with webbed feet, but for the most part the characters will follow this species category rule
As for the amount of legs the engines will have, that will differ depending on the engine's size. Tank engines and standard diesels would have 6 legs each, bigger mainline engines would have up to 8 legs (12 with a tender coupled), and narrow gauge engines would typically have 4 legs.
The biggest exception to this rule would be Mighty Mac. Since they're conjoined twins they have a set of legs each, making them the only narrow gauge engine to possess 8 legs. Plus all of their limbs are front legs with opposeable thumbs, another anomaly among engines in general.
Since this has been an unusually text heavy post for my blog, I shall leave you with two bonus (very rough) sketches:


Here we have James in a pinup-style pose (my brother's suggestion) as well as Thomas and Percy hanging out on a shed roof after somehow fining a way up there