I have just finished watching and listening to the 3 video's that you have posted. They are absolutely amazing in the way they run, the way they look and the way they sound. It is also nice to see that you have enough confidence to put your engine in an aircraft and fly it. A lot of engine builders don't do that. The way the aircraft took off it certainly seems to have lots of power. Perhaps when you build your next engine you could post a build thread and let us look over your shoulder as you build it. I certainly am looking forward to seeing more of your fine work. :bow: :bow:
@dsquire: Thank you for your comment! A Video of the building of the 14-cylinder-double-radial-engine (and some other videos) I have posted at YouTube. Look at