As regular readers know, I fly hang-gliders. I like knowing that my Dacron wing is being held in shape with some plumbing; namely, aircraft-grade aluminum tubing.
But others aren’t so particular. They fly paragliders. Same basic principle, but rather than tubing to maintain form, they employ a ram air inflated airfoil. Here’s how they work. And, as frequent commenter Doug Wolf will tell you: no, these are nothing like parachutes, and, no, you didn’t "do that" on your last vacation to Cabo (you went parasailing; different universe entirely).
Anyway, the purpose of this post is to show you the extreme end of this sport. Hold on to your stomach. If Doug catches this, I’m hoping he’ll give us a little explanation of the aerobatics involved. Check the comments for that.