I just learned (yesterday[2]) about the rolleron[1], a stabilizing mechanism that prevents roll. It uses the airstream to spin up a gyroscopic mass. The AIM9 i

I just learned (yesterday[2]) about the rolleron[1], a stabilizing mechanism that prevents roll. It uses the airstream to spin up a gyroscopic mass. The AIM9 is the only use I'm aware of. [1] https://en.wikipedia.org/wiki/Rolleron https://en.wikipedia.org/wiki/Rolleron [2] https://www.youtube.com/watch?v=cfzj3rRIVU4 https://www.youtube.com/watch?v=cfzj3rRIVU4