8ft lengths of 4130

[JonBlackmore Irish Eagle]

Guys will I de able to build my fuselage with 8ft lengths of 4130 I ordered materials and Ups will not ship materials over 8ft long do you think I’ll be ok.

[Tom XL-7]

https://www.faa.gov/regulations_policies/advisory_circulars/index.cfm/go/document.information/documentid/99861
Buy or download
Instructions for tube splicing will be there, both inner and outer sleeve methods 
Start around 4-90 will get you into welding
Check it out before placing order as you will need a few short pieces. 
Hope US methods are acceptable to your local regulations.

[JonBlackmore Irish Eagle]

Tom your a Dimond. Thanks a million. J

[JonBlackmore Irish Eagle]

https://www.faa.gov/regulations_policies/advisory_circulars/index.cfm/go/document.information/documentid/99861
Buy or download
Instructions for tube splicing will be there, both inner and outer sleeve methods
Start around 4-90 will get you into welding
Check it out before placing order as you will need a few short pieces.
Hope US methods are acceptable to your local regulations.

Tim found it downloaded it and had a good read. I then set about finding more info and found this http://www.flight-mechanic.com/repair-of-steel-tubing-aircraft-structure-by-welding/ which helped, drawings explain things better for me and this article has some good examples. Thanks, Tim .

[Chuck in Indiana]

4313 is the "mechanics bible." Splices in tubing (properly done) are fine.

[JonBlackmore Irish Eagle]

4313 is the "mechanics bible." Splices in tubing (properly done) are fine.

Thank you, Chuck

[JonBlackmore Irish Eagle]

And from the man him self

[Chuck in Indiana]

That "wet asbestos" might be a bit hard to find any more,    but that is exactly how to make your splices.

[JonBlackmore Irish Eagle]

That "wet asbestos" might be a bit hard to find any more,    but that is exactly how to make your splices.

Chuck been watching a line of these today and one of the wonders of the internet is how these movies are relevant today. Thanks, Chuck.

Jon

[Dan_]

That "wet asbestos" might be a bit hard to find any more,    but that is exactly how to make your splices.

They make a heavy fiberglass mat nowadays.  Fire blanket I always heard it called.  It usually comes in red, but I think yellow as well.

The video curiously did not show a method of aligning the angle cuts end to end, as in putting a center line on the tube.

Must have done one end of the replacement tube and eyeballed the other end.  Copes not aligned end to end will leave you with large gaps.

[Chuck in Indiana]

Chuck been watching a line of these today and one of the wonders of the internet is how these movies are relevant today. Thanks, Chuck.

Jon

We've been building airplanes like this for a *really* long time, now.