IV fuselage repair - measurements

5 posts in this topic

Posted

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 madeconfused.png
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!

fuselage01.thumb.jpg.49644e3df58e89bbf49fuselage02.thumb.jpg.552376c776c05ddced2

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Posted

Tubing is .035" wall thickness.  JImChuk

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Posted

Thanks!
Unfortunately 4130 tubing is sold out at the moment (Germany)...have to wait.

Like more pics? Here is the bent mess...mad.png

attachment.php?attachmentid=28377&stc=1fuse3.thumb.jpg.7a28d08fa1edd927e38c502ffuse4.thumb.jpg.adeef1f4b99df8be93b65c76fuse5.thumb.jpg.7a51a3b6a59de6a802ae33d4
previous repairman added triangle braces and steel stringers side and bottom, maybe to strengthen his welding skillsrolleyes.png

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Posted

I'm planning on measuring up my fuselage in the next few weeks. Mines badly repaired and has some corrosion. If it's not repairable I may build a new one from scratch. I'll post my drawings when I have them. 

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Posted

would be great to have some measurements as a cross reference…

Thanks!

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