Why just march 8 hours a day?

Lockheed offers ready-to-go supersoldier exoskeleton • The Register

four pounds of lithium polymer batteries will run the exoskeleton for an hour walking at 3mph, according to Lockheed. Speed marching at up to 7mph reduces this somewhat; a battery-draining “burst” at 10mph is the maximum speed.

The user can hump 200lb with relative ease while marching in a HULC, however, well in excess of even the heaviest combat loads normally carried by modern infantry. There’d be scope to carry a few spare batteries. Even if the machine runs out of juice, Lockheed claims that its reinforcement and shock absorption still helps with load carrying rather than hindering.

According to the Lockheed spec sheet (pdf) there’s an extended-endurance HULC fitted with a “silent” generator running on JP8 jet fuel. A tankful will run this suit for three days, marching eight hours per day – though presumably at the cost of some payload.

If you need to go where trucks can’t, a bunch of people each carrying a couple hundred pounds of gear can shift a lot of stuff in a few hours. I wonder if Fedex or the Post Office will be the next customer…

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