Abstract: The embodiments described herein provide a propulsive landing rocket landing leg system that provides for a high probability of a successful landing across wide stress and flow regimes due to the mechanism's ability to be implemented across a variety of compact and aerodynamic landing leg geometries. It provides for the ability to control unfolding speed for increased stabilization and removes unfolding dependence on the assistance of the gravitational force or separate “forced” actuating deployment sub-systems. The utilization of both rotational and linear damping units provides higher flexibility in the sourcing of lower cost components promoting higher cost-efficient construction and ease of parameter adaptation for the respective dynamics of the mechanism.