GReD

GReD / GReN
GReD is a shorthand term for Gravitic Redistributive Device, used as primary lift for most orbital landing craft and shuttles, they redirect gravity creating an anti-gravitic lift. There ae various types of GReDs, the best being those designed and manufactured by Greer Gravity.

Being a highly energetic device they produce huge amounts of thermal energy which is used to further asssist with lift, visible in the hot pink glow of the ceramic cooling vanes of the gravititic redistribution nacelles, aka GReNs.