Production variant of Su-57 appears to use one-piece dorsal aircraft skin. Are they still fastened to the airframe via bolts?
I think I ask this every year because I forget, is this the final canopy? one piece would look nice.
Yep Russian are doing rugged aircrafts that are not prone to become hangar queen.It is harder to make single piece canopy resistant against bird strikes. Russians tend to try to make their aircraft more robust than US does usually. If you look at the US ATF YF-23 prototype which competed against YF-22 it also uses two piece canopy.