In other news, I have been working on my "fly wheel" Balance has been hard as the wind makes it rotate, instead of stopping with one blade at the bottom.
Any way here are some photos and a video, in the video note how the accursed thing accelerates....
Here is a complete engine,
Here is the fly wheel, made from a 2x4 with hand tools and an orbital sander.
Done by eye no references except a memory of seeing a wooden prop hanging on a wall.
Here is a video of the balance process, and the interference by the wind. (about 4 mph+/-)
If the vid comes up as a still, click on the photo and it will run.