Very Good Instructional Glider Video Welcome to Sky Soaring › Forums › Restricted content › Very Good Instructional Glider Video This topic has 0 replies, 1 voice, and was last updated 4 years, 1 month ago by John DeRosa. Viewing 0 reply threads Author Posts Wednesday, October 14th, 2020 at 11:23 pm #9392 John DeRosaParticipant This video from Britain does a particularly good job of explaining the differences in performance of several glider vintages, polar curves, wind direction impact, contests, water ballast, etc. Enjoy! https://www.youtube.com/watch?v=sMVSajle4Ms Author Posts Viewing 0 reply threads The forum ‘Restricted content’ is closed to new topics and replies.