If you like Blender and animations as I do, please take you time to watch this video explaining in detail the most basic elements of a Black Hawk Helicopter. Jared does incredible animations and it worth binge watch his channel to learn a lot!
I watched most of the animations he created since 2020 and I do recommend the channel.
It shows how a jet engine works, aerial refueling, gyroscopic precession, and how nearly all helicopters work. Well illustrated and explained beautiful animations!