Now that the position of the rear spar carry through has been established fairly accurately the last couple of tubes that form the main fuselage structure could be added. The right one welds between the rear spar carry through and the upper fuselage diagonal just in front of station 78. The left welds back to the top fuselage cross member at the station. Later plates that form the upper seat belt mounts will be
welded between the rear of these tubes and the longerons. Next the wing attach brackets for the left side of the fuselage were fabricated. Again it took much longer to make these than seems reasonable but it is critical to get the dimensions exact to fit inside the spar attach brackets.
Now that the position of the rear spar carry through has been established fairly accurately the last couple of tubes that form the main fuselage structure could be added. The right one welds between the rear spar carry through and the upper fuselage diagonal just in front of station 78. The left welds back to the top fuselage cross member at the station. Later plates that form the upper seat belt mounts will be 
welded between the rear of these tubes and the longerons. Next the wing attach brackets for the left side of the fuselage were fabricated. Again it took much longer to make these than seems reasonable but it is critical to get the dimensions exact to fit inside the spar attach brackets.
