Powertrain for mid-19th century mecha

I'm writing a steampunk/weird west story set in 1867 and I want to incorporate some form of armored battle "walkers" (aka mechs). Looking for ideas for powertrains that could conceivably run such a vehicle.

I'm okay with being somewhat anachronistic, although I think something like a diesel engine might be too much.

Steam is the obvious answer for the setting, but I'd like to go a little deeper in explaining the tech than "it's a steam-powered mech." Curious about specific examples of steam engines that would be suitable for such a platform, or alternative power sources (internal-combustion? clockworks? hybrid-electrical?).

This is a pulpy story so it doesn't have to be too realistic, but I'd rather not have someone with basic engineering knowledge (which I don't have) throw the book across the room in a fit of disgust.

The vehicles I'm envisioning are designed to replace horses in cavalry regiments, so they can't be too plodding. They'd be used for scouting and shock attacks. Agile and fast would be ideal.

Would love to hear your thoughts!

posted about 4 years ago

Ryan Williamson‭

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