December 22, 2018
Description
It's a boomerang :)
It has a circular flight trajectory, with a diameter of about 10 meter.
If it fly up and stall - you are throwing it to hard.
It's very light and relatively small - as a result it does not perform well in windy conditions.
A good how-to page:
https://www.boomerangs.com/pages/how-to-throw-boomerangs
License:
Creative Commons - Attribution
z0333
