Reply to "Guinness World's Longest Model Train record attempts from 1980 in Columbus, Ohio"

With today's electronics and remote controls for multiple engines on the same track, would it be possible to lay one mile of three rail track and run twenty five engines on that track?  If that is possible, could you have thirty cars behind each engine for a total of twenty-five 30 car trains?  If you couple each engine to the last car of the train in front of it you would have a single train of 750 cars and more than 700 feet long.  How close do you need to be to the engine to control it by remote?  John