The tailspring must take substantial abuse from bad landings. It is a stout assembly, reinforced with carbon fiber.
Start by sanding each of the 6mm tailboards. You will laminate them together in the next step.
After allowing the glue to set, remove the clamps and remove excess glue. Sand until perfect.
If you are using a composite tailspring, drill and bolt together the assembly as shown in the following two photographs:
You will need to ensure that your rudder post is trimmed flush to the bottom fuselage line:
Place the assembly into the correct flush position, and mark the location of the heads by pushing into the foam.
Using a flat bit, (or a sharp knife), open up the bolt head areas. Then glue together using Gorilla glue.
To be continued….