Hi frank,Maj,Ozzie and all, Its a Solar T62-27 gas turbine APU, which I'm told is out of a CH53 helicopter,
I like these engines over the very common T62-32 ground base generator, they are less hp but also a lot less weight, the engine you see is 37 kg with its gear box, and it also has a right angle drive, which use to drive a 12kva 3 phase generator.
This gave me great access of my starter, the engine has a manual fly weight governor and an altitude compensator for rpm control, and this work faultlessly.
If you look up (turbo prop t62-27) on youtube you can see it running, and yes I know the irony that I can put together a turbo prop and I can't link you tube to my post yet.i_dunno