I performed the ground break-in run yesterday on the Evolution 20GX gas engine powered Great Planes Stuka. A short clip from the break-in run is shown in the video below. Sorry for the poor quality but I had to shoot the video alone with a cell phone.
http://www.youtube.com/watch?v=0Exj5DvbuF0
Best wishes and good safe flying.
Heli- NuBee (AKA Roger the radial rabbit)