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Tractor-drawn trailer with CTIS

The Tatra T813 prototype had CTIS as early as 1960; it later became standard for all Tatra military trucks.

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Find sources: "Central tire inflation system" – news · newspapers · books · scholar · JSTOR (October 2020) (Learn how and when to remove this message)

A central tire inflation system (CTIS) is a system to provide control over the air pressure in each of a vehicle's tires as a way to improve performance on different surfaces.