This plane called SJ-1 is the successor to the previous plane called Fast Plane, whose original name was to be Af-40. This new jet includes many improvements over the previous one, I made an improvement in the movements making them smoother and more stable with the same or even better maneuverability, the plane itself is more stable despite the weight it has, I tried to change the weight but it was very difficult for me. This plane includes the air brakes where it was commented something necessary, it includes camera, 3 lights, a parachute, varied weapons like for land and air. The design was tried to make it smooth and attractive, I tried to choose bright colors, in the end it is a plane to have fun, it is not detailed but even with its simple design, it achieves its goal. If you have any recomendations you can tell me, to make better and more attractive planes.