Think of it as one big roll cage. Repairs are allowed, I prefer to replace entire tubes were able. Splices are allowed but there are rules as to where and how you do them. Tubing is mild steel 1020 except in structural areas where it is 4130. All repairs are done with 4130 and gas welded. I do not like to TIG fuselages as I still have to preheat and post heat to prevent embrittlement in the welded area. I will show some of the repairs once I get to somw of them. Some will be easy, others will be complicated.
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Mike Redpath
Musclerodz & Customz
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