Ships
Anatomy
Ships have a very special feature - to power their gigantic batteries, they have solar collectors, which allow them to go into "stasis" - basically a power-saving mode similar to sleeping that doesn't require their engines to be running and therefore can save huge amounts of fuel. Otherwise their already vast fuel consumption would be unsustainable.
They come in many shapes, although the diversity has decreased drastically in the last decades. A special kind of ship, the submarines, are thought to be widely extinct. There have been alleged sightings, though, and if a ship simply disappears at sea, the elusive submarines are often blamed.
Culture
Major language groups and dialects
Naming Traditions
Ship names are generally gender-neutral. Male-sounding and female-sounding names exist, but they aren't necessarily indicative of the ship's actual gender identity. Many ships refer to themselves as "it", a custom that is very rare among tanks and planes, but can also be found with trains. This is related to their cultural perception - many tanks view ships as barely sentient objects rather than persons.
Relations
Sometimes there have been small revolts and attempts to overthrow their tank masters, but those usually failed simply because the ships need them as a source of maintenance and fuel. Most ships wouldn't dare to think about mutiny. Despite possessing the same cognitive ability as other machines, ships are not treated according to it, to the point of them believing that it is the case.
For some reason, I feel terrible for ships now. Great Article!
Island-Inquest awaits!
They don't have it easy, so that's understandable! On a related note, I've recently started working on a little interactive story that prominently features a ship, if you want you can check it out here :)
Check out The Hummelverse, the world of AI tanks!