The so-called Swarm Man has spent approximately £6,000 on his multi-rotor flying machine that he describes on YouTube as “just a bit of fun, never intended for making a significant journey or flying much above head height”.
Watch, enjoy and then visit the YouTube page of Swarm Man (aka gasturbine101) to see – among other things – the start up of a Rolls-Royce RB211 in what looks like someone’s back yard.
https://www.youtube.com/watch?v=t5JgnMJzCtQ
September 1935: Class A4 locomotive enters service
And your last sentence continues to this day!