The massive train 800 feet high and 1100 feet wide 60 cars long suspended by no less than 6 magnetic levitation points literally rockets down the airless 1200 foot diameter tunnel located 4 miles below the Earth's surface . Gleaming in copper worn silve and chrome ; blackened bronze and carbon fibre sheating a mix of spaceship, old giant locomotive and cyberpunk modified diesel it rises beyond a locomotive this mega-motive. With electric, jet turbine and multiple rocket engines, methane and even hydrogen, it carries no jet or rocket fuel but is piped it's fuel along the corridor along with the electricity as the superconducting magnets surround the entire structure to accelerate the massive 20 mile long tran-motive magnetically levitated machine underneath the ocean floor east from New York to Tokyo