Star shaped 7 cylinder UMS Evolution UT7 35 radial engine internal structure and design

Hello, my dear viewers and subscribes !
This video is most likely the last video from the cycle of stories about the 7-cylinder UMS Evolution UT7-35 radial engine.
Today we'll partially disassemble the engine and we'll see how it designed, what technological solutions are used in it. Actually, the engine is "cool", from the point of view of appearance, and of coarse, from the point of view of a collector, and that fact, that it actually works, and quite well, is generally fantastic. But today we are looking at the engine "from the inside", I'm interested to know what degree of wear it has after dozens of hours collected during break - in time and during normal, tuning operation, how clean it is inside.
In this video, you will also learn (or hear, for that matter) the difference in its sound signatures, with and without an existing exhaust system, when the exhaust collector ring manifold is disconnected.
If you really heard the difference (and I did), then it would be great to know about it in the comments to this video.
Thank you for watching CrazyEngines, I wish you all a good day and see you soon!