Airframe: the speed was increased from max 15m/s (50km/h) to 25-30m/s standard operation speed and top speed well over 35m/s. it can fly in winds of up to 60km/h and slopes up to 45deg.
Telemetry: from 1 km (3km theoretical) we increased to 30km range with the same 100mW transmitter. only tested on 10km but the signal quality was still 99% and math shows stable link till 30km.
Autopilot: hacked 3DR Pixhawk as we needed to control the camera directly, without delay.
Camera: Canon S110 hacked to shoot perfect pictures at 0.55second interval.