Here's an excellent and accessible article about the principles behind kite energy: http://cdn.syscop.de/publications/Diehl2013a.pdf http://cdn.syscop.de/publi

Here's an excellent and accessible article about the principles behind kite energy: http://cdn.syscop.de/publications/Diehl2013a.pdf http://cdn.syscop.de/publications/Diehl2013a.pdf