This preprint is updated. A sketch:
Caption:
Preferred embodiment of inflatable H-Darrieus VAWT connected to Flettner or Sharp balloons, with low TSR but good Cp, the great solidity improving the cohesion of the whole.
shapewave® technology would be useful for all elements of H-Darrieus turbine, such like blades and their supports which are profiled. @Rudo, do you have any comments and ideas? About the pressure-class of both blades and supports and their possible weight per m²? Thanks. I would say 1.0 -1.4 bar.
Note that the diameter of the balloon makes it possible to reduce the length of the supports which are integrated into the balloon via the end discs.