Hi Doug, please read the information on the comments. Concerning SkySails data tests were published and were reported at least two times in this forum: "Autonomous Airborne Wind Energy systems: accomplishments and challenges" and Metrics or equations? Power curves or simulations? - #5 by PierreB…
I put again and again the references of the published curves: https://www.annualreviews.org/doi/abs/10.1146/annurev-control-042820-124658, pre-print on
Figure 15 page 19: average power 92 kW, 12 m/s wind speed. And at hundreds of meters high, not few meters.
My comment: it is by far, and hopefully temporarily, the best AWE MEASURED and PUBLISHED DATA. A flexible kite was used, and reeling (yoyo) method was applied.