[quote=ASTA]
1) Modern MBTs are around that height. In fact, the M1 Abrams is about 8 feet tall (, which is about a foot less than what Sachmis is currently stated to be at. Older vehicles, such as the M4 Sherman,(), pushed 9 feet. Additionally, the pilot of Sachmis is actually lying down in the machine, his posture mimicking that of a light cycle rider's:When it comes to weigh distribution, four legs technically beat out two, as the pressure can be expressed across four surfaces rather than a simple duo. This means less pressure focused in one area. If it's too much, I can widen Sachmis' paws, which would make sense given the terrain she and her controller will be navigating through, with the paw-widening further decreasing her weight's impact on the surface (by increasing the paw's surface area) that she is walking upon. In all technical sense, this isn't even needed. For a frame of reference, the M1 Abrams actually exerts pressure on the ground than a civilian car, like a Ford Focus or even an H1 Hummer. This is a 60-70 ton MBT mind you. Four-legged creations, by default, are going to be shorter than two-legged ones. It's why you don't see tigers that are six feet tall, yet they weigh hundreds of pounds. And for the record, having a 50 foot machine that only weighs 60 tons makes little sense. The internal structure of that mech alone is going to be rather hefty; add on the armor and the weapons, and the weight increases. You may want to checked out this wikipedia article on the square-cube law: , since it will explain in detail what I'm getting at. In terms of the defenses, I know the limits and capabilities of what I put into my sheet. I wouldn't do that if I didn't know what this stuff does.
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The lightweight can be explained by the fact that it's set in the far future, tech's gonna be improved and lightweight enough to support such things while not losing out on integrity. The height is because you'll have arm-sized stubby legs either directly underneath or splayed out to the sides, making it improbable to support it's own weight anyway.