I have a crashed and repaired fuselage. Although the plane has been in service flawlessly for years since then, I don`t like the workmanship of previous owner. Welding is awful, no splices and metric tubes were used. Further additional `improvements´ were made
Goal is to get the fuselage back in original state as much as possible referring to AC43.13

1. What is correct tube size (green) of the longerons. OD is 1/2", but unsure about wall?
2. Does anybody have a bare, undamaged IV fuselage handy and could help me with some measurements in case? No rush!

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