Dangerous close-up with aircraft flying bellow 500 ft. He did few low passes over frozen lake. Nearest airport or airfield is 20 km away.

I think biggest problems with integrating drones into public airspace will be with small aviation. They don't want to buy expensive ADS-B equipment or similar things. Also other problem is paragliders and hot air balloons who don't even have radios...

This is little video which I put together last summer before UAV competition (Our team won 1st place!).

Competition consisted 3 main tasks:

1.Reading information from horizontal target (known place)

2.Reading information from vertical target (known place)

3.Finding target in known area

Our team almost succeeded in main 3 tasks (we found target but camera got it on edge of screen and wasn't really clear)

Setup: DragonFly-1 platform

APM 2.5 from RCtimer with 2.74 ArduPlane

HD Wing Camera II 1080P

Thanks Ministry of Economy of the Republic of Lithuania for sponsoring competition.