Blog Entries

Browse the complete Radical RC Workbench archive for RC building tips, battery guidance, aviation stories, shop news and hobby commentary.

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...

Amazing Inside Out Flipping Polyhedron Flying Machine

German automation company Festo has created an extraordinary helium-filled flying object that propels itself through the air by repeatedly turning itself inside-out. SmartInversion combines an extremely lightweight body….. Read all about it at...

Ryno Motors

At first I thought this was a fake viral video, however, it’s all true. Imagine a device that can go anywhere you walk, on the sidewalk, on the street, in an elevator or to the mall. Yet on only one wheel. It’s the on set of accelerometers and similar...

Funny, Those In Power Often Rewrite The History Books

I’ve watched and listened to the DNC (Democratic National Convention) over the last 3 days. Nearly every speaker talked about the million jobs saved when Obama and Biden bailed out the auto industry. The auto industry bailout was announced December 19, 2008 by...