I think that I am partly getting out of the topics concerned and I don’t know where to put all this and if it is worth it.
Both should have the same angular speed. It will be assumed that gliders are faster than the thick blades of the wind turbine on the ground, benefiting also from a higher average wind speed. As a result the kites could sweep much more space. The control would allow the angular velocity of the whole to be adjusted.
I think we definitely need a new topic. Let’s call it : “Twin Kite TRPT System”.
I inagined the Pyramid to have a smaller cartwheel/carousel [I believe Tiira uses the term carousel]. So the swept area would not be hugely increased by adding a blade inside the carousel diameter. The TSR of a HAWT is 6-8 [source chatgpt] so I expect the glide ratio of kite and tether to possibly go above 10, meaning that this idea is past the most obvious hurdle on paper being that the blade and kites don’t want to move at the same synchronized speed.
I think though that making the cartwheel strong enough at larger scale could be very hard or very expensive, if you also need the inner of the cartwheel to be an efficient blade…