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Step 1: Mode of Use
The Vortex is used to support ropes, pulleys and other rope
rigging equipment. The three most common functions are to:
A. Support ropes directly from the head of the frame
(fig. 1a).
B. Support ropes from a leg-mounted winch, through a
directional pulley on the head of the frame (fig. 1b).
C. Support a directional pulley or pulley system on the
head of the frame (fig. 1c).
For correct rigging, the user must know both the direction
and magnitude of the force acting on the frame. For this pur-
pose we have designated two primary Modes of Use:
Anchor Frame – The rope supporting the load is termi-
nated (anchored) to the Vortex (figures 1a and 1b).
Directional Frame – The rope is not terminated to the
Vortex but rather is redirected through a pulley which
is supported by the Vortex (fig. 1c).
Step 2: Identify the Applied Force
Knowing the Mode of Use will assist the user in determining
the applied force (force acting on the frame).
Anchor frame
• The magnitude of the applied force will be equiva-
lent to the mass of the load.
• The direction of the applied force will be along the
load line towards the load from the last point of con-
tact the load line has with the frame.
Directional frame
• The magnitude of the applied force will be equiva-
lent to the mass of the load multiplied by the load
factor of the directional pulley / pulley system (resul-
tant force).
• The direction of the applied force will be the bisect
of the lines running into and out of the directional
pulley /pulley system (resultant force).
®
E X P E R T
U S E
O N L Y
Fig. 1a
CONFIGURATION:
Tripod
MODE OF USE:
Anchor Frame
Fig. 1b
CONFIGURATION:
Easel-Leg Tripod
(w/leg mounted winch)
MODE OF USE:
Anchor Frame
ARIZONA VORTEX
USER'S GUIDE
APPLIED
FORCE
APPLIED
FORCE
Fig. 1c
CONFIGURATION:
Easel-Leg Tripod
(w/directional pulley)
MODE OF USE:
Directional Frame
APPLIED
FORCE
VORTEX USER MANUAL – 17
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