Section 8 Fuselage Date 12/23/2003 I started the fuselage by welding up the steel jig. I used 2"sq. tube with .090 wall thickness. Building the bulkheads and longerons is the first task to accomplish after the jig... The firewall is the first bulkhead to mount on the jig. After the locating the firewall the longerons are next with the rest of the bulkheads to follow. Everything is clamped in position including the floor webs and baggage ribs (Image) 153,154 &156 All the parts clamped together are squired to the fixture (building jig.) then squired and aligned to each other. After this I riveted the bulkheads to the longerons and the webs and ribs to the bulkheads. The fuselage skeleton is ready for skin.