9Aplus - Nice job, thanks for sharing those with us. I'm guessing the helicopter in Russian colors on the Oboronprom stand is the Arrius-powered Mi-34? And what's the story behind RA-0728 G??? It looks like someone's tried to build a gyroplane using the front half of an Air Tractor.
(Has Kazan really re-engined the Ansat with the Arriel? The annular intake makes me suspect that's a regular PW207 powered copy.)
I/C