This arrangement leads to a few complicated welding and machining processes, but surprisingly these obstacles can be overcome by simply printing a rocket engine on a 3D printer. The current engine ...

In March, the company became the first to design, build and test a 3D-printed jet engine for the U.S. military after completing successful fire tests, igniting fuel in a 500-pound thrust ...

which propels the engine and the vehicle it’s attached to in the opposite direction. Simple, right? Right! Until the 3d printer comes in. Sadly for 3d printed parts, they are made of plastic.

The aftermarket-focused moves come as P&W and competing engine makers work to address ... a new additive-manufacturing – also known as 3D printing – process for repairing GTF turbine inner ...