Picking a Carbon Fiber (or other) support

[JasonK]

I am working on my Vtol design finally and am having issues finding reference information for the strength of carbon fiber rods, so I can pick out an appropriate spar to support the tilt mechanism/wings.

Does anyone know were I can get flex strengths of various carbon fiber rods?

In the exploded view below, I need a spare to go all the way through from wing to wing, which will then have bearings on it for another tube (or other) for the wing and motor mount to be connected to.

 

[JasonK]

I found this: https://design215.com/dcal/toolbox/tubing-calculator
which tells me a OD of ~ 8mm for the main shaft should get me what I need (~24" total wing span)