Inverted Heli-Max AXE-EZ Coaxial R/C Helicopter

Just to let you know beforehand - if the heli tries to pick up speed in any direction, stop the acceleration ASAP or the blades between the upper and lower heads will contact each other. Comes down really fast after that happens! Maybe I should upload the crash videos... Anyone say "Aye" to that?

Aye

Landings, as in 'planned contact with the ground', haven't caused damage at all. Soft grass is the key. But having the two sets of rotorblades inter-strike while airborne is disastrous! While inverted, the EZ is negatively stable and wants to pick up forward velocity. The faster she goes, the more the two sets of blades til towards each other. Eventually they make contact and down you go. That's what breaks stuff! Read the "(more info)" section for...more info :D

Ah, no. Fun idea initially but whirling blades (of any size) and birds need to be far, far away from each other. The though of what could happen literally sickens me...

It was too simple. Exchanged blade between the upper and lower rotors, turned them over so the airfoils worked correctly, flew. That's it! I covered the steps in my comments upper right on this page. Click on (More info).