AERODYNAMICS – Forces Acting On An Airfoil

A 1957 film from the Department of Defense. I love the visual teaching method used in these early films. Lots to learn here if you wanted to understand the forces on an aircraft.

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The Fluid Dynamics Of Drag

Excellent video from days of old that demonstrate some very important aerodynamic principles.  The different drag produced by common objects is shown on a scale. You’ll be amazed.

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Expanding Your Airfoil Knowledge

Erik Dahl Christensen’s Airfoil History
If like me, you love to design aircraft and want to get a better handle on airfoils, Eric Christensens’s site is an excellent study. Click his home link to find calculators and other sailplane design information. Even if your not into sailplanes, the information is clearly presented and it’s influenced my thinking and understanding of airfoils on many levels. Studying other aircraft disciplines will help with your discipline whatever it is. I found the Airfoils section of this site very interesting. In fact, I may go back and give it a read again soon. I’m saving the link here for that purpose and to share it with you. I am currently working on my first sailplane kit and this site has helped me a great deal. Get some glue on your fingers!

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