EOS Mars Program: Pressurised Excavator An inevitable requirement of a sustained settlement is earth-moving equipment for construction and excavation, but in Mars’ case it is ‘regolith’-moving hardware. Following an Earth-type template but with wider tracks and crashbars for stability, this vehicle performs very much the same role as on the home planet.
The main differences are in carrying the overhead of a life-support requirement, and additional capabilities of a robotic arm that can work with different toolheads. Similarly, the conventional ‘bucket’ can be replaced with a trenching tool for pipelaying, a jackhammer for breaking stratified rock, or piledriver.
Of a lighter-weight construction, Mars’ lower gravity allows finer tuned structures. Weight has to be concentrated in the base to avoid springiness, and the weight of diesel and life-support machinery counterbalances the front-end operations.
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