I don't know if this deserves a dedicated thread, but still..
I found a firm specialising in carbon structures, both engineered beams and tube trusses:
https://element6composites.com/carbon-fiber-applications/carbon-fiber-trusses-beams/
Some of their images look very like a traditional tube-frame fuselage, but black.
Square tubes with gussets too.
I found a firm specialising in carbon structures, both engineered beams and tube trusses:
https://element6composites.com/carbon-fiber-applications/carbon-fiber-trusses-beams/
Some of their images look very like a traditional tube-frame fuselage, but black.
Square tubes with gussets too.