Aerodynamics

Read Radical RC articles on airflow, drag, stalls, wing behavior and the aerodynamic principles that help model aircraft fly better.

Fluid Dymanics of Drag – Boundary Layers

Excellent video showing in real experiments you can understand and see. Shows what the boundary layer is, what a stall looks like (if you could see the air) and vorticity. EXCELLENT! Part 1: Part 2: Notice also as the airfoil is inclining to higher and higher angles...

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.

Man Flys With Self Built Flapping Wings

Ok, all in all I am thinking this is big hoax rivaled only by the Global Warming hoax. However, on alot of levels it is every interesting. If it’s faked, it’s very well done. You can visit his website an do some reading for yourself. Of course he’s...

Handy Factors For Common Calculations

Calculating Pitch Speed: RPM X Pitch Inches x .0009469 = MPH Pitch Speed Convert wing area from square decimeters (dm) to Square Inches and back: Sq dm x 15.5 = Square Inches Square Inch x .064516 = Square dm Servo Torque: KG CM x 13.887 = Inch Ounces Inch Ounces x...