In this video we talk to the Red Hawks two person formation aerobatic team of Mathew Hill and Bob Grimstead about the Fournier RF4. These planes are probably the lowest powered (and cheapest to run in terms of fuel use!) aerobatics aircraft flying today.
The combination of a quiet engine, smoke, music and formation aerobatics lends a graceful style to the display. Before each performance Mathew and Bob practice their routine on the ground which you can see in the video.