After the curing process, the patterns of holes are manually made by means of a brace and brit with the help of a mask that is placed on the part as guide. Therefore, the After Frame is coupled with the Host Mount by means of special grub screws that are inserted in the holes of each component, as shown in Fig. 17 on the left. No adhesives or resins are used to secure the surfaces, since a perfect adhesion is not required. The Box Support is coupled to the obtained sub-assembly, as shown in Figure 17 in the middle. Finally, the Frames (Forward and Cowlings) are coupled, as shown in Fig. 17 in the middle and on the right. No jigs have been used, since the assembly is small and it is manually caught.