It refers to a craft using highly pressurized Mercury propelled by nuclear power to make plasma. The plasma creates an anti-gravity zone around the craft. The motive power system contains an electromagnetic coil that produces an electromagnetic drive. This interacts with the Higgs Boson field at quantum level. It’s fascinating!
The TR-3B was designed to be a subsonic stealthy surveillance plane. The aircraft is quite quiet and produces only a small humming sound. Plasma from the TR-3B has the unique effect of drastically reducing the aircraft’s radar signal. This makes it ideal for stealth missions.