Blog Entries

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

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....

RadicalCast #006

[display_podcast] We discusss: Bad weather strikes, flying field weather tips. Fun with Hover Craft! More On Form & Peak Charging. Using thread locker properly.

John Purtee’s Twin Speed 300 Stick

Example of how a well planned power system works. Model hanging in shop. Can’t wait to fly it again. John builds nice stuff. All of them light and strong. Many hand built models by John are listed on our front page as of the date of this post.

Wire Resistance and Voltage Drop Calculator

Jeff Lucius provides us with his Voltage Drop Calculator. An excellent site to help understand why wire size maters. If you have a 1000kv outrunner and your voltage drop across wires and connectors is .5v then your losing 500 prop RPM. Yikes!