Luxembourg is a city in Germany if my geography and my memory are both working together. Since that book was published in 1980,,, technology and flight systems have evolved tremendously. I would not be surprised if apaches and the like have far greater flight capabilities than we might ever know. I just thought it was cool to see a full scale in a roll. On the closing clips of the show there was a shot of an apache doing a vertical down roll and then a smooth pullout. That was pretty cool as well. It just isn't something you expect to see everyday.
Later,,,basmntdweller