Those things have a glide ratio of ~2.5 to 1. At ~ 120 MPH. A jet fighter is 7 to 1.
Those things are sinking very, very fast and have minimal control. What control they have comes at a high price in terms of their glide ratio.
Looks like fun, but not freedom.
While the jet is 7 to 1, it's going so fast its sink rate is very high.
Arf
