teri drao 2 #1 Posted May 2, 2021 Watching Dragon come home on Nasa live. Anybody has or have jumped this? Hi-5 Military Ram Air Parachute | Airborne Systems (airborne-sys.com) Quote Share this post Link to post Share on other sites
gowlerk 1,903 #2 May 2, 2021 No, but I love the marketing term for front risering. "Glide Path Modulation". Quote Share this post Link to post Share on other sites
riggerrob 558 #3 May 2, 2021 Amusing how it attaches suspension lines to mini-flares. Note that these mini-flares are far broader than those used by Flight Concepts. They are conceptually more like the broad flares on Para-Foils and other early ram-air canopies. Quote Share this post Link to post Share on other sites
nwt 131 #4 May 3, 2021 On 5/2/2021 at 11:39 AM, riggerrob said: Amusing how it attaches suspension lines to mini-flares. Note that these mini-flares are far broader than those used by Flight Concepts. They are conceptually more like the broad flares on Para-Foils and other early ram-air canopies. What are flares in this context? Quote Share this post Link to post Share on other sites
gowlerk 1,903 #5 May 3, 2021 23 minutes ago, nwt said: What are flares in this context? They are the method of attaching the lines to the canopy using triangular pieces of fabric sewn into the bottom seam. They are used to distribute the load and in some designs also act as small keels and can replace stabilizers. As shown in this drawing of an FCI reserve canopy in side view. 2 Quote Share this post Link to post Share on other sites
billvon 2,384 #6 May 3, 2021 On 5/2/2021 at 6:12 AM, gowlerk said: No, but I love the marketing term for front risering. "Glide Path Modulation". They are talking about a B-line stall here, which is a bit different. It's common on paragliders, not so common on parachutes. Quote Share this post Link to post Share on other sites
gowlerk 1,903 #7 May 3, 2021 (edited) 11 minutes ago, billvon said: They are talking about a B-line stall here, which is a bit different. It's common on paragliders, not so common on parachutes. So that would be non-cascaded A-B lines with a method of shortening the Bs in flight? Edit, never mind, found it. The paragliding Wiki page has a lot of info.... B-line stall In a B-line stall, the second set of risers from the leading-edge/front (the B-lines) are pulled down independently of the other risers, with the specific lines used to initiate a stall. This puts a spanwise crease in the wing, thereby separating the airflow from the upper surface of the wing. It dramatically reduces the lift produced by the canopy and thus induces a higher rate of descent. This can be a strenuous manoeuvre, because these B-lines have to be held in this position, and the tension of the wing puts an upwards force on these lines. The release of these lines has to be handled carefully not to provoke a too fast forward shooting of the wing, which the pilot then could fall into. This is less popular now as it induces high loads on the internal structure of the wing. Edited May 3, 2021 by gowlerk Quote Share this post Link to post Share on other sites
