1. #1
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    Default How to bring Stokes back to ground when lifted to high point?

    We had an incident where we considered the use of a tower ladder for a 25' below grade trench rescue.

    I know how every aspect of it would need to be done, except for one.

    When the stokes reaches the bucket of the tower ladder, and is essentially now dangling over the trench in no mans land, how do pull it back to ground?

    Would it require another line attached to the basket, to sort of make it into a cable car and let slack on the main line as we pull on that second line to bring it down?

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    I am lost, what are you looking for? Just either swing the Tower Ladder over to where you want to lower the patient, or use a tag line. Then just reverse haul (lower using the MA).

    Quote Originally Posted by BrooklynBravest View Post
    We had an incident where we considered the use of a tower ladder for a 25' below grade trench rescue.

    I know how every aspect of it would need to be done, except for one.

    When the stokes reaches the bucket of the tower ladder, and is essentially now dangling over the trench in no mans land, how do pull it back to ground?

    Would it require another line attached to the basket, to sort of make it into a cable car and let slack on the main line as we pull on that second line to bring it down?
    This is what a tag line is called.

    Hope that helps?
    ~Drew
    Firefighter/EMT/Technical Rescue
    USAR TF Rescue Specialist

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    Thats exactly what I was asking, thank you.


    I thought it was unacceptable practice to use the mechanics of the tower ladder to move the victim in any way?

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    The use of an aerial to move a suspended load (stokes or harnessed rescuer/victim) has always been a great debate which seems to have no cut and dry answer. To answer your question as long as the stokes is completely clear of any obstructions, swing it around to the lip of the trench. Make sure your hauling system (4:1 or whatever MA you are using) has plenty of travel to make the swing. I would be a little hesitant to introduce another type of system to transition the strokes to the trench lip. Again if there are no obstructions, just swing the aerial around to the lip. Tower ladders are fairly strong, however make sure the operator is fully aware of the weights limits as it relates to extension footage and elevation angles.

    I know many will say never use the aerial to move a suspened load,however sometimes we have to do what we have to do to make things happen. We must understand what we trying to accomplish. A unwritten rule (I have never been able to find it in writing) is if a load needs to be moved vertical or horizontal with a aerial, the opertor must have a visual on the the load at all times. If they cannot see the load at All TIMES from the turntable, do not move the load.

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    [QUOTE A unwritten rule (I have never been able to find it in writing) is if a load needs to be moved vertical or horizontal with a aerial, the opertor must have a visual on the the load at all times. If they cannot see the load at All TIMES from the turntable, do not move the load.[/QUOTE]

    A very good unwritten rule to follow. When you consider reaction time for someone paying attention is about 3/4 of a second or longer and you may have multiple people involved in the communication process, if the load hangs up on something we can cause critical, if not fatal injuries to the patient. Relaying the commands by radio still has the same problem. Reaction time plus dead spots where the radio just doesn't work reliably and we can have a tragedy in the making.

    Mike

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