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Step 4a: Securing the Feet
Regardless of configuration, the feet of the Vortex must
be secured to control all forms of movement. The securing
methods and rigging must resist all tensile, compressive and
shear (sliding) forces transferred to the feet via the legs and
frame.
The feet must be placed on and/or secured to a surface that
will resist the forces applied to the Vortex frame, such as solid
ground or substantial structural members. The feet can be
secured in numerous ways, including but not limited to:
1. Connect the legs together using independent hobbles
between each pair of feet.
2. Wedged or Engaged into a natural or artificial niche.
3. Bolted to solid surfaces or structure.
4. Lashed to objects.
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Step 4b: Securing the Head
The head of the frame must be secured to resist the tenden-
cy of movement. The head is typically secured through a
combination of legs in compression, legs in tension and guys
in tension.
In some cases, the force acting on a guy may exceed the
force applied by the load. Care must be taken to ensure that
all components used are able to resist the forces applied with
the required factor of safety or safety margin. The number
and position of guys is dependent on the Vortex configura-
tion and its intended function.
For Steps 4a & 4b:
Hobble, lashing and guying material are not supplied
with the standard Vortex Kit. Rock Exotica recommends
the following criteria for choosing guy material:
1. Lightweight
2. High Strength
3. Small Diameter
4. Very Low Elongation
ARIZONA VORTEX
USER'S GUIDE
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