
1) Magnetic propulsion device
Found on
https://www.crosswordclues.com/clue/scmaglev

The SCMaglev (Superconducting Maglev) is a magnetic levitation train system developed by the Central Japan Railway Company (JR Central) and the Railway Technical Research Institute (association of Japan Railways Group). The system was previously referred to as `MLU`, after the names of several test vehicles and for having a U-shaped maglev track.....
Found on
http://en.wikipedia.org/wiki/SCMaglev
No exact match found.