vincearnone 0 #1 January 1, 2017 A full wrap-up and infographic for the vertical wind tunnel industry. 32 public tunnels opened this year! http://www.indoorskydivingsource.com/news/the-2016-indoor-skydiving-industry-report/Indoor Skydiving Source - The Leading Indoor Skydiving Resource Quote Share this post Link to post Share on other sites