Does torque transfer over a network of tensioned hoops scale better (better power to weight) than over a solid shaft?
I believe so
Because the lines are soft, we don’t have to worry about huge torsion in the shaft. Shaft deformation is not a problem.
Get the ring to ring geometry right so spacing is less than diameter. The twisting problem is done. In the unlikely scenario of more torque than lift it comes downward. Excellent.
The benefit of high tension combined with wide diameter and multiple lines, means lightweight hoops can easily withstand the compression of torque.
Polar moment of inertia only needs to be addressed at stepped intervals, a solution which no solid shaft uses. This enables scale.
This will surely become especially apparent with better hoop sections than I use and with gridding for rigidity
That I believe is important.