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riggerrob

Racer quick loops

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Sorry folks,
Someone tried to send me a personal e-mail about Racer quick loops, but my computer could not read it.

Basically, Jump Shack recommends two materials for quick loops. Cypres cord or Kevlar. These are the only two materials recommended by the factory because they are the only two types of line manufactured without resin or latex coating. Resin coating has an annoying habit of slipping when you finger trap joints, but do not sew them.

There is also a major debate about whether you should use the American pattern (Jump Shack) or the European pattern (Airtec) when replacing Racer quick loops.
Jump Shack insists that any rigger holding an FAA rigger's license follow the American pattern which involves handtacking the new loop to the top of the pilotchute. I hate this process as I am painfully slow at hand sewing and customers always complain about how many hours of labor they get charged.

On the other hand, Airtec (the European company that manufacturers Cypres) recommends sewing a Type 4 channel to the top of the pilotchute and merely sliding the new quick loop through the channel. The European pattern may take a few minutes more the first time you replace it, but it is vastly quicker on each subsequent quick loop replacement. Ergo, I prefer the European pattern.

However, be fore warned that if John Sherman hears about you installing European pattern quick loops in his Racers, he will yell at you for a while then ask the FAA to pull your rigger's license. I have never heard the the full explanation as to why John Sherman dislikes European pattern quick loops.

In 1998 a group of California riggers did a series of tests (on the ground) with European quick loops and they functioned exactly the same as the American pattern. Late in the test program, - in an effort to create a tangle - we tried pulling only one pin. Results were consistent. A fraction of a second after pulling one pin, the pilotchute consistently slammed into the ceiling.

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In 1998 a group of California riggers did a series of tests (on the ground) with European quick loops and they functioned exactly the same as the American pattern. Late in the test program, - in an effort to create a tangle - we tried pulling only one pin. Results were consistent. A fraction of a second after pulling one pin, the pilotchute consistently slammed into the ceiling.



Why would you perform that test from the top of a step ladder? ;)
alan

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