dbr171 0 #1 April 18, 2007 Does anyone know if is it possible to do a looping under a canopy? I know that Mike Kung did this on his paraglider 68 timen in a roll...but never heard abou it on canopies... http://www.madmikekung.com/ Quote Share this post Link to post Share on other sites
mgattini 0 #2 April 18, 2007 Yes on paragliding wings it is possible but IMHO it is not even remotely possible on a skydiving wing. Quote Share this post Link to post Share on other sites
NeedToJump 0 #3 April 18, 2007 Yes it is possible to do. There's a post about how to do it here: http://www.dropzone.com/forum/Skydiving_Disciplines_C3/Swooping_and_Canopy_Control_F4/Canopy_Aerobatics_P112305/ Video 1 Video 2 Video 3 (ouch)Wind Tunnel and Skydiving Coach http://www.ariperelman.com Quote Share this post Link to post Share on other sites
cessna54tango 0 #4 April 18, 2007 um, no, thats a roll on the horizontal axis. a loop is on the vertical axis. Quote Share this post Link to post Share on other sites
NeedToJump 0 #5 April 18, 2007 I was just going by the picture, I saw the canopy underneath the person and thought that's what he meant. My bad.Wind Tunnel and Skydiving Coach http://www.ariperelman.com Quote Share this post Link to post Share on other sites
mgattini 0 #6 April 18, 2007 Wouldn't a loop be on the lateral axis, and perhaps a spin on a vertical axis. Quote Share this post Link to post Share on other sites
jheadley 0 #7 April 19, 2007 What makes it possible on one and not the other? Quote Share this post Link to post Share on other sites
TaylorC 0 #8 April 19, 2007 QuoteWhat makes it possible on one and not the other? i believe it has something to do with how much lift you can get in paragliding. Quote Share this post Link to post Share on other sites
cessna54tango 0 #9 April 19, 2007 Quote Wouldn't a loop be on the lateral axis, and perhaps a spin on a vertical axis. was working on airplanes all day, head must have been in a spin. Quote Share this post Link to post Share on other sites
mgattini 0 #10 April 19, 2007 I don't have enough experience on gliders to be able to explain why it is, but genarally speaking people are able to do much more dynamic maneuvers (acro)on gliders then on canopies. They are designed to creat much more lift and so I they can convert that into allowing them to do things like: loops, flat spins, SAT and some pretty wicked stalls..... Quote Share this post Link to post Share on other sites
d123 3 #11 April 19, 2007 It also depends on what wing you are flying. With a DHV1 it might be imposible to do that! Here is a nice video of Hellicopters and Infinity done with paragliders. It ends with a wing over! http://www.macpara.com/galerie/movies/close%20to%20infinit%20web.wmv Edit: spellingLock, Dock and Two Smoking Barrelrolls! Quote Share this post Link to post Share on other sites
chris74 0 #12 April 19, 2007 Hi Birds, 1) Mike kung only did rythmic sat during his record 2) for infinity tumbling , you need a very dynamic and special paraglider 3) Here is an inside view http://justacro.com/index.php?m=21 and DWLD Infinity Tumbling by Horacio Blue skies Chris PS : For us a barrel roll is a looping and infinity Tumbling could be a kind of looping Quote Share this post Link to post Share on other sites
Para5-0 0 #13 April 19, 2007 similiar to a rollercoaster doing a loop, the canopy would have to go into a dive and not only carry enough speed but not bleed it off as you pulled it upward. I think a canopy cant respond without losing significant speed. Not to mention there would be a good amount of G force, making it hard to complete at the top. Love to see it done some day. Quote Share this post Link to post Share on other sites
phoenixlpr 0 #14 April 19, 2007 QuoteLove to see it done some day. I'm not sure. It can turn into a deadly wrap. Quote Share this post Link to post Share on other sites
dorbie 0 #15 April 26, 2007 This acro move is called the infinite tumble or infinite tumbing, google that for video etc. Quote Share this post Link to post Share on other sites
amir1967 0 #16 April 27, 2007 http://video.google.com/videoplay?docid=-2617263101051108814 is he going moving backword ?? the looping??AM67 Quote Share this post Link to post Share on other sites
dorbie 0 #17 April 27, 2007 Quotehttp://video.google.com/videoplay?docid=-2617263101051108814 is he going moving backword ?? the looping?? The wing is flying forwards, the pilot is rotating backwards since they are both pivoting around a point between the pilot and the wing. If you see a good SAT you'll see a similar effect (there are a few shitty SAT videos that are more like spirals out there). This starts with a SAT: http://www.youtube.com/watch?v=7omi796EmeM Quote Share this post Link to post Share on other sites
audacium 0 #18 April 28, 2007 Quote Hi Birds, 1) Mike kung only did rythmic sat during his record That is correct, but to be fair with him, meanwhile he is doing real infinity @all: And you cannot do infinity tumbling because foremost (as mentioned already) a skydive wing is not efficient enough, it would lose energy too fast while a paraglider wing suited to infinity can carry the energy through the manoeuvre, mainly because of much higher aspect ratio (thus better glide, less induced drag). Such a glider must be extremely dynamic on the pitch axis (virtually no damping). (They will usually be very dynamic on the roll axis as well.) There are other factors as well to make a wing able for infinity, for example the trim must be chosen correctly, but I am not a manufacturer of such wings so I do not want to speculate about details. Best, Eduard. -- Eduard Quote Share this post Link to post Share on other sites
BMFin 0 #19 April 29, 2007 I have understod that the kind of loops shown on the videos that needtojump posted can be done if you have a canopy that has enough speed (WL more than 1.6) After a good dive you should start leveling the canopy with rears and then while still having a lot of forwad speed suddenly drop the other riser. These "loops" may not be 100% pure over horisontal axis but mostly so I guess. However I do not recommend anyone trying them by my instructions even at high altitude, since it is definetly not risk free... Quote Share this post Link to post Share on other sites