Germany can call 109F4, G2, 190A4, T4 is not recommended now. It is better for German engines to operate a radiator manually or boil water. Anyway, it is very simple for Germans to operate manually. I can't play English ... I break easily. Which means the plane will disintegrate at a low speed. When pulling at high speed, it will prompt the limit overload and then disintegrate. Bz is very simple. You have a height, but there is no height on the opposite side, so you dive. After playing, you just need to change the speed with the height and then pull up the climb to get the height.