Gyroscopic Precession in Helicopters

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Today I cover Gyroscopic Precession as it pertains to helicopters.
Gyroscopic Precession is "the phenomenon of precession occurring in rotating bodies that manifests as an applied force 90 degrees after application in the direction of rotation." Simply put, any action made on a spinning body will present itself 90 degrees later in the direction of rotation. So an increase in pitch at the nose of aircraft will manifest on the left side of the rotor system. This increase in lift on the left side causes the aircraft to roll to the right. Luckily for the pilot, the engineers that built the aircraft have rigged it in a way that if you want to turn left, you simply put in left cyclic. This is because the controls are rigged with a 90 degree offset. So while you are putting in left cyclic because you want to turn left, the control input is actually being made at the aft portion of the rotor disk.

This is a fundamental concept to understand because it affects other areas of helicopter aerodynamics.

Thanks for watching and check some of my other videos!

If you're just getting started and want more information, pictures, and more explanations, I'd recommend reading the Rotorcraft Flying Handbook - http://amzn.to/2ifPlnZ

If you've already got a basic understanding, and want to further your professional helicopter education with advanced helicopter concepts, I'd recommend reading Cyclic and Collective, by Shawn Coyle - http://amzn.to/2ifQGLx

Видео Gyroscopic Precession in Helicopters канала Helicopter Lessons In 10 Minutes or Less