RD-191MR Tested: Russia’s 3D-Printed 200-Ton Rocket Engine for Angara-A5M

In 2025, Russia successfully conducted hot-fire tests of the RD-191MR — a next-generation liquid rocket engine manufactured using advanced industrial 3D printing technologies. Designed for the modernized Angara-A5M heavy launch vehicle, this 200-ton-thrust engine represents a major technological shift in rocket production. The RD-191MR is based on the proven RD-191 engine family developed by NPO Energomash but introduces extensive additive manufacturing techniques using domestically produced metal powders and high-temperature alloys. Components were printed individually using specialized industrial 3D printers, significantly reducing assembly complexity, material waste, and production timelines. According to published data, additive manufacturing reduces labor intensity by around 25 percent, lowers production costs by nearly 40 percent, and shortens manufacturing time by approximately 2.5 times. This could dramatically improve competitiveness in the heavy-lift launch market and accelerate modernization of the Angara rocket family. In this video, we break down: – What the RD-191MR is and how it evolved from earlier RD-191 versions – How additive manufacturing is transforming rocket engine production – Why the Angara-A5M depends on higher thrust performance – The economic and geopolitical implications of this breakthrough – What this means for the future of Russian heavy-lift launch systems Is this the beginning of a new era in rocket manufacturing? Watch to find out. #RD191MR #AngaraA5M #RocketEngine #3DPrinting #AdditiveManufacturing #RussianSpace #SpaceTechnology #LiquidRocketEngine #HeavyLiftRocket #AerospaceEngineering #SpaceIndustry #RocketScience #Energomash #FutureOfSpace Be a Member for exclusive privileges - https://www.youtube.com/channel/UCviEFTf1xIPKsjmyF_zvFug/join Twitter : https://x.com/AltitudeAddicts