I don't know if someone else came up with this concept, but here it goes. So, as you can see in the screenshot, the engine is set up so that the very rear engines can turn up and down, but what is not in the screenshots is that there is another set of engines that use sp logic to keep propelling it forward. It could be just the fact that I'm constantly on low phyisics (my device is a little slow), but as you fly at a regular speed, if you begin to pitch downward a little and pitch up immediatly, or vice-versa, you can begin to spin vertically because of tne way it is built. You may think this is a bad thing, but if you counteract the way it is spinning by pitching the opposite way it is spinning, you can do one of two things: 1) you can do a complete 360 degree flip in midair for a stunt, or 2) you can do a 180 degree flip and roll to where it is facing the other direction completly, and if you can pull it off, this trick can be used for dogfighting. In conclusion, I thought this could be an interesting concept to build in sp. This plane is not mine, so most of the credit can go to the guy that made it. I just wanted to see if this was already a thing, or if someone can build something like this just for this concept.