R3 (Responsive, Rapid, Resilient) Space

R3 Aerospace Inc. (Responsive, Rapid, Resilient) is an early-stage American aerospace and rocketry company based in Tucson, Arizona, founded in 2014 and associated with "Rick's Rocket Ranch." The company was founded by Rick Loehr, a career propulsion engineer with 41 years of aerospace industry experience including positions at General Dynamics (from 1979), Hughes Missile Systems, and Raytheon (retired 2012). R3 Aerospace focuses on the development of space technologies and rocket propulsion systems for commercial and research applications. The company is in an early stage of commercial development, with its technical work drawing on founder Rick Loehr's extensive propulsion engineering background accumulated over four decades in the aerospace sector.