Government Technology/News/Press Releases Army, Rensselaer Polytechnic Institute Prototype Quadrotor Drone Maneuverability Element The U.S. Army has partnered with Rensselaer Polytechnic Institute (RPI) in New York to develop a “trajectory planner” element to help improve vertical takeoff-and-landing maneuverability for quadrotor drones. RPI and the U.S. More by Brenda Marie Rivers December 9, 2020