irvine .46
Re: Jett 50: "It reportedly turns a Turbax I fan at 25K."
I doubt it. I have seen the Jett 50 in action and it could barely make 23.5k rpm in a Turbax I. Nope, if you want a high performance .46 sized fan engine, the OS 46 VXDF is the only game in town.
Peter