Redesigning and modifying a helicopter with side fans (In Catia software), in fact, this is a type of quadcopter with the capabilities of a helicopter that, unlike a helicopter that has a blade and uses the eject button in emergencies that are dangerous for the pilot. In this model, two very strong fans are used on the sides and one fan is used in the tail, which adjusts the movements to the left and right by rotating the sides of the fan and changing the direction of the output winds. However, in this model, two small fins Used in the center and tail, which is used to keep the helicopter stable. The main changes are in the air outlet of the fans in the back of the cabin (inlet air from the front and outlet from the rear) and the installation of the frame for the rear fan, as well as the central wings and the tail and front of the cabin.
