抄録
The airborne wind energy generation is in rapid progress recent years as was presented in the international conference AWEC 2017 held on 2017 October. The Japanese project is now at the 1.5 phase employing a straight blade windmill consists of two windmills. The windmill is examined its performance in a wind tunnel for the windmills of phase 1.5, 0.6m diameter and 1.2m total span, and of phase 1+, 0.3m diameter and 0.6m total span. The performance is also examined by field tests as a demonstration for of effective energy transfer through the tether. Technical key points are also in examination for the project by the coordination of professional teams.