DARPA Puts $32M Toward Quadruped Robot Prototype

The Installer writes with this selection from GizMag: "Walking quadrupeds are being cast to play a major role in the rapidly unfolding age of robotics. The platform promises versatility far beyond that of wheeled-vehicles and will undoubtedly find applications in a wide variety of fields. Not surprisingly, the development of quadrupeds is being driven by the military and DARPA has recently boosted its efforts by awarding Boston Dynamics $32 million for the prototype phase of its Legged Squad Support System (LS3) program. ... LC3 is conceived as an autonomous support pack-robot for ground troops that can carry 400 pounds or more of payload, sustain itself for 24 hours and cover 20 miles in almost any kind of terrain."

Why four legs?

[immaterial]

Wouldn't six be more stable, distribute weight better, and be more redundant in case of failure of a limb? The only advantages I can think of to four is better efficiency (maybe? Having to move fewer limbs should be a plus, but on the other hand they'll each also have to be more powerful) and a slightly more compact form. Is it worth it? I'd certainly find a couple extra limbs convenient; you'd think a military robot in potentially harsh conditions would also find a couple spares very useful.

Congratulations

[srussia]

from TFS: LC3 is conceived as an autonomous support pack-robot for ground troops that can carry 400 pounds or more of payload, sustain itself for 24 hours and cover 20 miles in almost any kind of terrain

They just specced a camel!