Me too That category tho is IMO totally a rich man's game. Not sure whether that had two or four actual miniature turbines but - each costs about $3.5k IIRC. I'd guess $25k tied up in that beast.
Just this morning I flew my 1/4 scale Ryan STA a coupla times - that is as big as I need to go and can afford - even that has approx $1k tied up in it! I am beginning to downsize a bit now - just as much fun.
However - it's good to see these giants - always enjoyable.