>>64435275
I'm sure they do, just happens that those didn't have them.
>>64435282
Yeah, when trying to fly nap of the earth you invert to keep a positive G load on your wings as you will get over to the other side much quicker than just pushing forward on your stick and unloading your wings, making the turn less tight or sharp. US cruise missiles do the same thing right before impact. They do a pop-up, go inverted, and steep dive maneuver to keep the airframe positively loaded and get the sharpest, fastest turn they physically can to decrease enemy reaction time.
https://www.youtube.com/watch?v=AjtSXJGxMNE