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I'm Stuck - Tell Me How To Get Out.

Discussion in 'Off-Roading & Trails' started by stewartx, Feb 6, 2012.

  1. May 16, 2012 at 10:36 AM
    #141
    korslite

    korslite Well-Known Member

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    Strictly speaking from a rigging standpoint, the way the strap is connected to the recovery points on the broken truck is poor practice. I say this because by going accross both shackles and choking the strap back to itself that way you create two potentially bad situations and can damgage your gear.

    One problem is that a huge amount of the line tension translates into a force pulling those two recovery points towards each other side loading the shackles and the recovery points on the bumper. Neither of them are rated for a load in that direction and can be damaged especially if you were to "snatch" with them attached that way.

    The other potential issue is that the strap is choked thru the eye rather than with a shackle. This causes a ton of friction between the eye and the webbing of the strap. This can damage or even melt and break the strap under heavy or repeated load. By attaching the choke with the eye on the pin of a shackle and the webbing running thru the bowl of the shackle you avoid this issue.

    Ideally you would want to use just one of the recovery points for the pull. Or if you ned to pull from both points to share the load, which I imagine is the reason for running thru both shackles in this case, you would want to run a strap from both pts and attach to your main line with a shackle.

    Hope that makes some sense. If not, oh well I tried. Again this is looking at it from the rigging side, not really recovery specific, but the principals and physics apply to recovery as much as in rigging for lifting or anything else.
     
  2. May 16, 2012 at 10:45 AM
    #142
    Manwithoutaplan

    Manwithoutaplan the full Monty

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    thank you for the info that was helpful i will try to remember that. so I should have used two straps instead of one then. Do you think i should have pulled him down instead of up???
     
  3. May 16, 2012 at 10:49 AM
    #143
    korslite

    korslite Well-Known Member

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    No problem man! Glad when sometimes work experience can translate into wheelin and other stuff that is generally cooler than working! :D Either one strap from the tow vehicle to one pt on the stuck truck, or one from each pt on stuck truck (both = length) to a single line attached to the tow vehicle I would say.
     
  4. May 16, 2012 at 10:57 AM
    #144
    Manwithoutaplan

    Manwithoutaplan the full Monty

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    Do you think i should have pulled him down hill instead of up hill???
     
  5. May 16, 2012 at 11:01 AM
    #145
    korslite

    korslite Well-Known Member

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    That i'm not sure about honestly, seems like whichever way you could pull it with more control would have been best to avoid more damage to his front end. Did they get it fixed out there?
     
  6. May 16, 2012 at 11:08 AM
    #146
    Manwithoutaplan

    Manwithoutaplan the full Monty

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    well i figured the up hill way because his tire was facing the way we need to get out of the situation. I was afraid of his tire getting hung up if i pull him from down hill messing more than a tie rod, plus i would have not had the control. he took the tie rod off went to a local Napa store. But they didnt not have in stock, so they bent the tie rod back as straight as he could and limped home.
     
  7. May 16, 2012 at 11:15 AM
    #147
    korslite

    korslite Well-Known Member

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    Sounds to me like you guys did the right thing! :thumbsup:
     
  8. May 16, 2012 at 11:21 AM
    #148
    MonkeyProof

    MonkeyProof Power Top

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    You guys did good

    :thumbsup:
     
  9. May 18, 2012 at 7:52 PM
    #149
    Mxpatriot

    Mxpatriot Busted Knuckles Fabrication

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    Money pit.
    Manwithoutaplan,

    What you have with the strap on the disabled vehicle is known as an "American triangle" in the climbing world. It actually puts more stress on each point than if you just used one, since it is leveraging the force side to side rather than to the front. Doesn't seem like it but people smarter than me have done the math to prove it.

    You were smart to pull him up because you can control his speed better. If you would have pulled him backwards, that wheel with the broken tie rod could've turned, changed the direction of the truck, and possibly rolled the vehicle.

    Check out this climbing website, it has great explanations for how to make equalized and redundant anchors/rigging.

    http://opp.uoregon.edu/climbing/topics/anchors.html
     
  10. May 18, 2012 at 7:55 PM
    #150
    krimson

    krimson Nothin

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    Never go wheeling alone...
     
  11. May 19, 2012 at 10:18 AM
    #151
    stewartx

    stewartx [OP] Well-Known Member

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    The risk is just not worth it. With my luck, if I tried his suggestion (a bear whistle), it would only attract every darn highway patrol officer in the state. While they might be able to pull my truck out of the mud quickly enough, they'd probably write me a speeding ticket for going that quickly - and perhaps another for not wearing a seatbelt in the process.
     
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