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Plans question: Page 3 Detail C

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mvanheerden

New Member
Joined
Mar 30, 2014
Messages
2
Location
Calgary,Canada
Hi All,
Newbe question(s):

- The Sonerai I plans page 3, detail C apparently show a 24" tube INSIDE a 48" tube. Am I reading this wrong?
- If it is inside, I then presume it is centered and rosette welded?
- Any guidance will be appreciated.

Also: what is the widest tolerable gap for a weld when joining the 3/8" .035 tubing?

Markus van Heerden
 
Hi Markus,

Welcome!

Regarding the Sonerai I plans, page 3, detail C, take a look at the additional information on the 'Corrections' page:

normal_image~19.jpg


I think that will answer your question

Best regards,
Joe
 
Not sure I can understand. Could not find it in any gallery. Does anyone have a photo of this?
 
henka said:
Not sure I can understand. Could not find it in any gallery. Does anyone have a photo of this?

That is strange, Is the photo of the plans that I provided not showing?

24" tube goes inside, is centered, and then welded to the outer tube with six 1" long bead welds along the bottom. These welds are then filed for fitment

Or are you asking for a photo of a fuselage with the tubing installed? If so, I'll see if I can get a good photo for you off of my S1.
 
What Joe says is true. The 24" long tube is centered in the 48" long tube. When the top longerons and diagonals are welded to the 48" tube, the inside tube will be locked in place by the distortion caused be the welding. There is no need to rosette weld the tubes together.
 
Thank you, was just wondering about the "carefully to tight fit" :-\
 
Ok, just checked my fuselage. Mine has two rosettes on the inner tube and no 1" beads.
 
Much thanks Joe and Fred!

I guess the reason for it is; for internal strengthening of the 48" tube.

I plan to make this part today.

I think I'm going with the two outermost 1" beads and two rosette welds combination!

Regards
Markus
 
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