India’s scramjet success proves hypersonic strength, but turbine complexity keeps fighter engines a tough challenge.

South Korean defense conglomerate Hanwha has begun to build new jet engines for the Boramae fighter’s Block 3 variant, replacing General Electric.

It doesn't seem to matter how powerful jet engine technology becomes; the cost of air travel doesn't seem to be coming down any time soon. But that doesn't mean de facto flagship airlines like Delta ...