Page 63, November 2009 Parachutist. Wow. I always thought that if someone ever got a picture of a line dump, that it would be on a Tandem.
Now, the question is, does that look like a true "line dump", as in all the lines coming unstowed at once? It seems like it, but I wonder what is beyond the top of that photo.
I wonder if the drogue is inflated at that point. (There doesn't seem to be much tension from the canopy attachment point to further up the bridle, but maybe that is a transient force, or lack of.)
Anyone know the photographer, Brian Rowland, and can ask what else he saw?
Can anyone identify the rig? And how this manufacturer recommends stowing lines?
Re: [Slurp56] Tandem line dump picture in Parachutist?
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I'd tend to agree since the canopy is still cocooned and the bag is out of frame almost as if the canopy is being pulled out of the container after its already had the bag pulled off of it. Once again this is something that the Speed Bag design was to eliminate. I would be curious to hear if this was a speed bag equipped for the main or if this was a regular main bag.
Re: [peek] Tandem line dump picture in Parachutist?
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That is exactly why I am so strongly against the use of regular rubber bands for locking stows. They are too likely to break when you don't want them to. They can easily break while your rig is packed up before you deploy, they can easily break when the bag is getting lifted off your back and there is increased stress on the locking stows.
Even the design of the Racer speed bag acknowledges this point. That is why they have SO many rubber bands used, they don't trust just a few to do such a critical function.
Of course the pic in question may have resulted from something besides broken rubber bands.
Re: [peek] Tandem line dump picture in Parachutist?
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Look a little closer at the photo Gary. You can see the lines from the risers are going up to a common point just out of frame (at least one rubber band held) and then a group of lines comes down (to the canopy) slightly to the left of the "upgoing" lines.
It also appears the drogue is collapsed at this point.
Perhaps the videographer can post a U Tube of this skydive so we can analyze it further?
(This post was edited by Gene03 on Oct 31, 2009, 4:16 PM)
Re: [peek] Tandem line dump picture in Parachutist?
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In order for the bag to strip off the canopy, the lines either had to dump off
I believe that Bill Booth did a lot of research into this and figured out that canopy could come out of the bag even with some of the line bites still attached. It depended on if the two primary locking stows remained intact. "Line dump" as it is referenced is in correct, as many people know. If it was real, then the "lazy bag" design would be a death trap.
As to the reference material, I poked around the company formerly known as RWS's website and didn't see it. Maybe someone knows what I'm talking about and has the file laying around.
Re: [AggieDave] Tandem line dump picture in Parachutist?
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After reading all these tandem problems over the last year, I am just glad that i walked away from a tandem rating with never having any major problems.
Re: [jdthomas] Tandem line dump picture in Parachutist?
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After reading all these tandem problems over the last year, I am just glad that i walked away from a tandem rating with never having any major problems.
Too many people honestly believe that a tandem jump is just another skydive. Doing tandem jumps is really its own discipline in skydiving. Yes it is an instructional program, but all in all it can be separated just like RW, FF, Swooping, etc. You spend about 1000 jumps getting decent at it and the rest of the time refining your technique. Just like any other aspect of skydiving. You have to be a near expert in gear that is used no where else in sport skydiving. Yes there are similarities, but the differences far out weigh the similarities. No amount of RW or FF can prepare you for what some of those students who do in front of you. No amount of CRW or Swooping can prepare you for flying a tandem canopy at a different wingloading each and every jump, while teaching someone how to fly a parachute.
Its a completely different aspect to our sport that a lot of people don't get (until they get their rating), and I love it!
Re: [dragon2] Tandem line dump picture in Parachutist?
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Yikes, not something a cameraflyer wants to see... Anyone know how that opening went?
I've seen video of the exact same scenario (not the jump in the picture, however), and the opening was normal. I believe the canopy was an Icarus 360? The one I saw was caused by poor packing- half hitching the locking stows, naturally they broke.
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