This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Aeroforces de.svg Auftrieb Gewicht Strmungswiderstand und Antrieb Derived work from Image Aeroforces svg Amada cczero Diagrams of forces applying on airfoils
Page 2023 Free-images.com. All images are Public Domain