Welcome to Balsacentral!
Balsa Trailing Edges are a specialised shape popular for Aeromodelling applications where it is used to form the trailing edge of wings. The principles of Trailing Edges, or Ailerons, haven’t changed for over a century!
Trailing Edges are long Isosceles triangles with one angle at 90 degrees and two other angles that vary depending on the dimensions of the sides. Thickness refers to the shortest side and the height to the longer side.