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What is the rational for these two different 6x6 truck chassis arrangements? Is it merely a matter of intended distribution of weight across the chassis while in use?

As in, two axles up front to support a heavy engine, two axles in the rear for heavy cargo, or for towing a trailer?

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  • $\begingroup$ Does the first Tatra have an articulating frame? $\endgroup$
    – Phil Sweet
    Oct 21, 2019 at 1:42
  • $\begingroup$ I'm not sure. If you search for pictures of Tatra T815 you can find plenty of other examples: live.staticflickr.com/2506/4123910771_f3bee406c4_b.jpg $\endgroup$
    – Rekov
    Oct 21, 2019 at 3:56
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    $\begingroup$ Okay, not an articulating frame. The first is intended as a prime mover with a 120 metric ton towing capacity. That requires a good bit of weight on the steering axles. In the case of the first photo, both front axles are steering axles to provide sufficient steering control over the heavy truck/trailer combo. $\endgroup$
    – Phil Sweet
    Oct 22, 2019 at 2:32

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