Repairing Structural Tubing is a 1950's vintage training film produced by the U.S. Department of Education demonstrating the inspection and repair of 4130 Chromolly steel tube airframes. In the film, a truss tube is found bent and set back into shape with forms and clamps. Then a longeron is found to be cracked and so the section is replaced with a welded inner sleeve and splice. Although this is an older film, the methods demonstrated are still appropriate and valid when maintaining or restoring these vintage tube and fabric type airframes.