This shows our new ARM7 based Wolferl Next Generation Quadrocopter.
You see HW 0.10 with SW 0.39 outdoors using 3x 1D-Kalman.
The movie shows Taarek's flight with Amir's 38cm NG using Hacker 20-28 clones.
He's using a 4500mAh 30C battery which is a bit too much weight for the small motors.
Check out http://ng.uavp.ch for more information