Quadrupedal autonomous robot designed to carry 180kg of supplies alongside infantry over rough terrain. Used AI for autonomous navigation and obstacle avoidance.
LS3 demonstrated that AI-powered legged robots could navigate extremely challenging terrain autonomously, including dense forest, rocky mountainous terrain, and mud, while keeping pace with dismounted soldiers. The program's termination due to noise levels from its hydraulic actuation system led directly to DARPA investing in electric actuation alternatives that now power platforms like Boston Dynamics' Spot. LS3's technical achievements in autonomous terrain navigation remain foundational to all subsequent military ground robotics programs.
USMC field tests 2012–2015; retired due to noise levels; influenced successor Ghost and Spot platforms
Boston Dynamics was acquired by Hyundai (005380.KS) in 2021. DARPA funding for LS3 was part of broader robotics programs that now benefit Textron (TXT) and Ghost Robotics, which is private.