I was asked to attach the citation to the final paper to the pre-print (pdf page containing figures 15 and 18), which I did, my link pointing to a post containing these two connected pieces. The first initial post was "Autonomous Airborne Wind Energy systems: accomplishments and challenges".
So I’m doing it again:
https://www.annualreviews.org/doi/abs/10.1146/annurev-control-042820-124658
Pre-print:
Now the video (read the document from 3:07) was often connected within the forum. Here is a direct link:
For the table 8 (representing some measured data rather than power curves), click on the link below then on the pdf link at the bottom of the page:
https://repository.tudelft.nl/islandora/object/uuid%3A56f1aef6-f337-4224-a44e-8314e9efbe83
At the same time I will sketch out a temporary conclusion to add to my initial comment, which you can of course confirm or deny.
Figures 15 and table 8 (flexible kites in yo-yo mode) provide positive values in spite of the significant amount of energy and time during the reel-in phase. SkySails system (figure 15) generated an average of 92 kW at 12 m/s wind speed, which is one of the higher results in AWE. It is perhaps a reason why now Skysails sell off shipping to focus on AWES.
Concerning figure 18 and the video for rigid wings in yo-yo mode (and also a previous Makani wing), I already commented them (message just before the message below), in first about the (too) high energy consumption during reel-in phase. You replied
After many years of development, don’t you think that the necessary steps you describe could have been achieved, leading to power curves showing the real potential, and in particular reel-in phase with less energy consumption?