I recall some years ago (ahem) an R/C modeller who was keen to build a Harrier. He spent some considerable time looking around the II+ I happened to be driving at the time and taking photos of the nozzle system etc. He showed me the jet engine he was going to use and the preliminary plans he had, mainly to prove he wasn't some spotter who simply wanted to get up close and take nerdy photographs. He was an engineer by day and pretty switched on to the vagaries of the hovering jets, so I have no doubt he was man enough for the job. It would be great to know if he (or anyone else) has achieved this and managed to build an R/C 'Bona Jet'....any uTube clues?
As it happens, I am a complete arse at flying R/C aircraft and, having spent more time repairing the ones I kept crashing, decided it's much easier to fly the real thing, especially when the damn thing is coming towards you!
That A10 is a neat bit of kit. They need to scale the speed down though to make it more like its grown up cousin.