Hey Ivan,
Thanks for the reply. I have seen videos of the PC-21 flown with the Kingtech 100 turbo prop unit and did understand that power system had not been released and was still under development. So just a bit confused as I assumed the K-60 P turbo prop unit was an entirely different power system.
Anton, can you please post a video of the PC-21 speed test? Also, would like to know what prop was used to achieved the speed reported.