SL with "SL-carry-with-you" setup

[BASE_689]

Hello there,
The present post is to inform you that last week I did a SL jump with the SL/break cord with "SL-carry-with-you" set up. Perhaps I have been the first to use it, I dunno, for sure I have been the first in Italy to do it. Anyway, this post is NOT to brag about who is first to do what, but to share information. ;)
One of our local A, horizontal handrail. I manufactured a "SL-carry-with-you" exactly as per the photo "sling.jpg" in the attachment, with the exceptions: 1) the Static Line is NOT made from spectra (or any other canopy line) but is made from a 4 mm dyneema climbing rope, whose sheath is quite hard/robust and the "kit" itself is quite stiff; 2) I did not have the 3 loops "sticked into themselves and sewn" but rather I did 3 knots (I dunno the name, it is a very good knot used in sailing...).
The set up with break cord is exactly as per the "Static2.jpg" attachment.
I had the "branch-attached-to-bridle" of the kit to stay on the upper side with respect to horizontal handrail: the purpose of this being is that once you break the break cord, the whip stroke you have as a result is towards "UP", so not hitting anything along the way. If I had the "branch-attached-to-bridle" of the kit on the lower side, for sure in the whip stroke it would have hit any part of the steel structure below, not that this would mean automatically entanglement, but, you know, just in case... being in the upper side, it simply CANNOT hit anything.
My jumping mate, who witnessed the deployment (no, he did not have his videocamera at this stage... ) did NOT notice anything strange.
Deployment was clean as usual and I did NOT leave anything on the structure :+ , diferently from #726, who left his SL onto the structure (we will recover it next time) ;(
My next step is to have my rigger to manufacture the "SL-carry-with-you" with the SAME dyneema rope as I have now but having the 3 loops done with the "sticked into themselves and sewn" technique and NOT with my very good knots, which are way bulkier than the sewn loops....
I will keep you informed on the setup!!!

Stay safe out there
Blue Skies and Soft Walls
BASE #689 :)
e-mail: base_689@yahoo.com

[crwper]

One thought on this setup... Is it possible to attach your bridle to the sling/cord with a turn or two of break cord (rather than directly, as pictured)? In the event that the sling gets caught on something, this would allow it to come free from your bridle.

Otherwise, this looks like a pretty sweet setup.

Michael

[BASE_689]

>Is it possible to attach your bridle to the sling/cord with
>a turn or two of break cord (rather than directly, as pictured)?

I understand what you are saying. The answer is yes, of course it is possible. Smart idea indeed. ;-) I would connect the fixed part of "special SL" to bridle with a normal loop of break cord (=whose break load is 40 lb - 36 kg). This way, the "going-to-break" break cord breaks at 40 lb - 36 kg, as it is meant to do, and then the additional break cord connection loop is going to pull with bridle the "special SL": the force to do so is way less (in normal conditions) than 40 lb - 36 kg, and, in case there could be any entaglement/getting caught/whatever, at 40 lb - 36 kg it is going to depart, so freeing the bridle. Yes, smart idea indeed. :+
In any case, I would use my "original" set up every time there is the metallic structure with "horizontal only" smooth metallic bars/handrails/whatever: in such a case, it is virtually impossible to entangle with anything.
Of course, in those cases in which the metallic structure has got ALSO vertical protruding metallic bits (=good chance on entanglement), I would NOT use my "special SL" but rather I would use the normal set up, that is: fixed SL (to be lost onto the handrail) and loop of break cord connecting SL and bridle.
But indeed your idea is a very smart one: this way, just in case of entanglement, you would be freed by the "second" break cord loop (that some jumper, i.e. JJ, normally uses in case of very low SL jump (=he removes the PC but doubles the break cord loop, the second being several inches/cm's longer than the first, so having two successive failures at 40 lb - 36 kg at distance of hundredths of seconds from each other)).
My next SL jump, I am going to give a try to your "second safety break cord loop".
Thanks again. :7
I will keep you informed :)

Stay safe out there
Blue Skies and Soft Walls
BASE #689 :)
e-mail: base_689@yahoo.com

[BASE_689]

>Is it possible to attach your bridle to the sling/cord with a
>turn or two of break cord(rather than directly, as pictured)?
Michael,
yesterday night I did a SL jump with "special-SL-carry-on" configured exactly as you said: I attached "special-SL-carry-on" to bridle with one (normal) loop of break cord. I climbed up, rigged all the stuff, jumped, break cord broke properly, good on heading opening, flew, landed, collected canopy, jumped into car with ground crew, ran away ;-)
Once at home I notice my "special-SL-carry-on" still attached to my bridle with break cord. It resisted to whip stroke!!!!! :+
Actually, all the force the "attaching-break-cord-loop" has to withstand is simply the friction of the dyneema rope to go around handrail.
So, in the end, the above set up worked really fine indeed!!!!!
Once I will be able to do so (=need to have back from vacation #726 with videocamera), I will post a picture of both my "special-SL-carry-on" and my "special bridle" for SL jumps :7

Stay safe out there
Blue Skies and Soft Walls
BASE #689 :D
e-mail: base_689@yahoo.com

[crwper]

Sweet! Glad to hear everything worked.

Michael

[Faber]

could you post some info about how long your devise is at different places?
If not,could you mail me?(we talked earlyer).

Any thourghts about if the devise get stuck on the rail(thinking of having a ekstra breakcord on as suggested),would it have any influence at offheadding,having 2 pulls (first normal SL and then "breakaway"from the devise)?

sorry if i dont explain good enough.