![Aerojet Rocketdyne successfully tests 3D printed AR1 engine in bid to replace current RD-180 - 3D Printing Industry Aerojet Rocketdyne successfully tests 3D printed AR1 engine in bid to replace current RD-180 - 3D Printing Industry](https://3dprintingindustry.com/wp-content/uploads/2017/05/C6PVqvpWMAIDq4V.jpg)
Aerojet Rocketdyne successfully tests 3D printed AR1 engine in bid to replace current RD-180 - 3D Printing Industry
![In the United States, the first AR1 rocket engine was assembled, created as a replacement for the Russian RD-180 - ВПК.name In the United States, the first AR1 rocket engine was assembled, created as a replacement for the Russian RD-180 - ВПК.name](https://vpk.name/file/img/be-4-6pzj9yn8-1610538421.t.jpg)
In the United States, the first AR1 rocket engine was assembled, created as a replacement for the Russian RD-180 - ВПК.name
![AR1 engine clears milestone in step toward ending U.S. reliance on Russian propulsion – Spaceflight Now AR1 engine clears milestone in step toward ending U.S. reliance on Russian propulsion – Spaceflight Now](http://spaceflightnow.com/wp-content/uploads/2017/05/050417_AR1_Successful_Engine_Preburner_Test-2.jpg)
AR1 engine clears milestone in step toward ending U.S. reliance on Russian propulsion – Spaceflight Now
![Michael Sheetz on X: "Aerojet Rocketdyne finished building the first AR1 rocket engine – but it lacks a customer and won't be hot fired until at least "late 2022." It's another piece Michael Sheetz on X: "Aerojet Rocketdyne finished building the first AR1 rocket engine – but it lacks a customer and won't be hot fired until at least "late 2022." It's another piece](https://pbs.twimg.com/media/EroNrvYWMAArRZv.jpg)
Michael Sheetz on X: "Aerojet Rocketdyne finished building the first AR1 rocket engine – but it lacks a customer and won't be hot fired until at least "late 2022." It's another piece
![Air Force Funds Both AR1 and BE-4 Rocket Engine Development to Replace ULA's Russian RD-180 - AmericaSpace Air Force Funds Both AR1 and BE-4 Rocket Engine Development to Replace ULA's Russian RD-180 - AmericaSpace](http://www.americaspace.com/wp-content/uploads/2016/03/AR1-Engine-Graphic.jpg)