Hoop Glider Redux ( Improved Interference Fit )

This is a ring wing glider also known as a hoop glider. You can throw them like a paper airplane and they fly.  https://www.scienceworld.ca/resource/hoopsters/ This version has simple one perimeter hoops, and I have improved the interference fit to make them more tolerant of different printers. So it should be more reliable now.

There are rings at 50, 75, 100 and 125mm that you can print, though the example project layout only shows the 100 and 125 mm rings.

For an example of it flying see the following you tube clip. If it isn't flying well you need to curve the strong back into a smile not a frown shape.  See the picture below.