RE: OMP Hybrid Edge 540 Build
Next the plans said to
Glue on the top and bottom 1/4" sq. balsa stringers making sure they are flush to the edge of the sheeting. You will need to splice the balsa together toward the rear of the fuselage to get the extra length. Note that the top stringer fits flush into the notch formed by the ply doubler and that you will need to leave 1/8" gap at the end of each stringer for the rear fuselage former.
Then
Cut and glue in place the 1/4" sq. balsa stabilizer bracing exactly 3 3/16" down from the top of the fuselage (measured from the top of the fuselage to the top of the stab opening). Again, be sure to leave 1/8" gap at the end. Glue the bottom stab brace on leaving exactly 1/2" gap for the stabilizer
Here are some pictures of my progress. I made a modification to the servo mounting on the elevators one in front of the other for one reason if i choose to use longer servo arms i can.