SpinningWing Logo


Welcome to Spinning Wing. We aim to provide useful content about helicopters, tiltrotors, and wind turbines—machines with spinning wings. We are in the process of creating new articles. Feel free to let us know if you have any recommendations, comments or questions.

March 18, 2022. We added a page describing the SAS/SCAS on helicopters.

February 20, 2022. We added a page describing the V-22 flight controls.

February 15, 2022. We updated our helicopter engine article.

February 4, 2022. We've added a longitudinal trim calculator for a conventional hovering helicopter.

January 24, 2022. We've added a lateral trim calculator for a conventional helicopter.

January 11, 2022. Check out our personal air vehicle article. Could they replace helicopters for many missions?


Flight Test Data: Estimating Frequency and Damping

Helicopter Abbreviations and Symbols

Helicopter Components

Helicopter Flight, Control and Stability

Helicopter Forces and Moments

Helicopter modeling and simulation

Helicopter Performance

Helicopter Rotors

Other Rotorcraft


Helicopter Models

Personal Air Vehicles

V-22 Controls

Wind Turbines

Wind Turbine Airfoil Design

Wind Turbine Components

Wind Turbine Startup Process

Back to home