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Apr 13, 2017 at 12:59 history edited CommunityBot
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Mar 24, 2016 at 21:35 comment added Ralph J @jamesqf The up/down-drafts would take you off of both the gradient as well as the vertical speed. But yes, these illustrations work much better without real-world annoyances. :-) I don't want to rely on finding more updrafts than down in order to clear the obstacles, and if I do find more down-drafts than up-drafts... that's why we clear them by a margin, I suppose!
Mar 24, 2016 at 21:30 comment added jamesqf Re "...flying exactly "this" climb gradient will yield "that" vertical speed..", if you disregard the possibility of up & down drafts, of course :-)
Mar 24, 2016 at 21:08 history edited Ralph J CC BY-SA 3.0
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Mar 24, 2016 at 21:02 history answered Ralph J CC BY-SA 3.0