Beehive Industries will test its 3D-printed engines for use by the USAF, which are reportedly cheaper to build, use, and service compared to traditionally manufactured engines.
These are cheaper and faster to build compared to engines built using traditional methods.
In May 2025, Delhi NCR-based Green Aero also successfully demonstrated its first hydrogen-powered jet engine named The Blue Dragon, but commercial deployment of such engines is still a long way away ...