Just flying through the tunnel

Tonight's remote controlled airplane video, of a flight through a tunnel in Stockholm, Sweden. From the video's description:

The challange was to do the impossible, fly a huge aerobatic RC-plane under Stockholm through a 3.9km long tunnel called Södra länken.

The plane is 80" wide and weighs 13lb. The mighty electric motor provides 35lb of thrust and a topspeed closer to 120mph.

I'm not sure about the 120mph claim; maybe that's the scaled speed for an aircraft that size.