The AlphaDog Proto is a lab prototype for the Legged Squad Support System, a robot being developed by Boston Dynamics with funding from DARPA and the US Marine Corps. When fully developed the system will carry 400 lbs of payload on 20-mile missions in rough terrain. The first version of the complete robot will be ready in 2012. This video shows early results from the lab where we are developing the control systems and locomotion platform. This lab prototype is powered remotely. AlphaDog will draw power from an internal combustion engine, which we designed to be 10x quieter than BigDog. The field version of AlphaDog will have a sensor head packed with terrain sensors. Boston Dynamics leads a development team that includes AAI Corp, Bell Helicopter, CMU/NREC, FEV, JPL and Woodward HRT. For more information visit us at www.BostonDynamics.com.