Very impressive, if the rest of the spec lives up to real testing then its going to put a lot of manufactures nose's out of joint, and they will have to catch up quick if they want to keep selling turbines.

I saw a couple of these at the Hop Farm display last year being flow by TJD in Elans the only thing is they where being flown with lots of other jets and it was difficult to know what turbine it was that was a lot louder than the others, if I remember there where two Wren's in a Falcon 120 and a couple of JetCats also in Elans, in these sensitive times it would be nice to have a standard by which turbines could be noise tested, if only a simple reading at 10M behind the eflux and down wind at least that would tell us something.

Mike