HELP Please from the UK.
I am in the middle of building the wings for the Piper Cherokee. This is my first Balsa model I have built in 40 years, so I am rusty to say the least. The wings are coming on fine, but the plans show a seperate piece to build, and add to the wings. The additional build uses a template for determing the Wing Tip Angle. The plans for both wings show a dotted line for Aileron seperation for top and bottom of wing. What is that all about, and where do I glue this additional piece. Appreciate anyone help on this. Frustrated UK.