looking for 6061T6 2"-1/2 OD 0.083" wall tube

[JLS]

Here are some notes and calculus.
These are SVG files, I advise you that to download them you should open them with a recent
navigator (Chrome, Firefox, MS Edge). There is no danger of computer viruses.

spruce sleeve inertia
https://drive.google.com/file/d/18oO...ew?usp=sharing
(not OK in google drive preview, download to view)

Inertia of disc sector (rounded sleeve with tube fitting)
https://docs.google.com/spreadsheets...it?usp=sharing
GoogleSheet discrete sum

3 view
https://drive.google.com/file/d/1ZLz...ew?usp=sharing
(OK in google drive preview)

bending calculus of 2.5" 0.083" spar with wooden sleeve
https://drive.google.com/file/d/1FcP...ew?usp=sharing
(download to better view)