Balsa Stick Stretcher (Scarf Joint)

If you need a longer piece of stick balsa, just make one using a scarf joint. Scarf joints have been around for a long time, they are easy to make and strong. For wing applications like spars, leading and trailing edges, put the joint toward the wing tip where the stresses are less. For fuselage longerons, stagger the joints. Use masking tape to tape the two pieces together. Cut an angle using a razor saw...