We've tested a lot of parachutes made by us, both at school and other places, and faced a lot of difficulties, as most of them didn't work. Even the ones that worked weren't very good. This problem is increased, of course, by the fact that the parachute has to work as a parafoil. That's why we finally decided to buy our own parafoil and simply change it a bit.
Here are three videos showing us testing some parachutes made by us:
Here are three videos showing us testing some parachutes made by us:



