kallend 2,146 #26 August 22, 2009 You'd be better off making measurements of velocity and glide ratio, and back-calculating your lift and drag coefficients for various brake settings.... The only sure way to survive a canopy collision is not to have one. Quote Share this post Link to post Share on other sites
shah269 0 #27 August 22, 2009 Quote You'd be better off making measurements of velocity and glide ratio, and back-calculating your lift and drag coefficients for various brake settings. I was thinking zero brakes, a ball of mass equal to 180lbs, standard / new equipment at standard ambient conditions at say 1kft. But I'm guessing such a thing doesn't exist. If so then cool no big deal. As I said it was actually a work related question.Life through good thoughts, good words, and good deeds is necessary to ensure happiness and to keep chaos at bay. The only thing that falls from the sky is birdshit and fools! Quote Share this post Link to post Share on other sites
d123 4 #28 August 22, 2009 When paraflite was up&running they had this HiGlide parachute for military service called PARIS (like a deployable paraglider). Along with technical data they published the graphs that you requested (polar curve, etc). Most of the data was done to show that on night jumps with 0 visibility there's a good chance of surviving the landing in brakes. About 3 years ago I was on the same quest as you so I've save them. Meanwhile paraflite teleported to zodiak and the web site is down. See the attachments. Edit to add: From the polar curve you can get some interresting information: - In no wind on toggles the greatest glide is around half brakes. This might be true for every skydiving canopy. - With increased WL the glide ratio goes down in full speed. This might be true for PARIS only. If you're interested in learning about the polar curve follow this guy http://www.jdburch.com/glidercd/aerodyn.htmLock, Dock and Two Smoking Barrelrolls! Quote Share this post Link to post Share on other sites
