30
VTX A12 | Rigging Manual
POSITION A
Position A is the first Extension Bar attachment
position. This position is used when the array is sus-
pended from two points (front and rear, or side-by-
side), and can be used for single-point hangs if the
prediction shows that a shackle can attach to a phys-
ical attachment point on the Extension Bar.
POSITION B
Position B is used when the LAC-3 prediction for sus-
pension from a single point indicates that the desired
array site angle cannot be achieved with a shackle
hole in the A position. Sliding to the B position may
better align the preferred shackle attachment point in
the LAC-3 prediction with an available physical posi-
tion on the extension bar, enabling a desired array site
angle to be achieved.
POSITION C
Position C is used similarly to position B, offering
the same ability to increase the number of available
physical positions for shackle attachment when an
array is suspended from a single point. Sliding to the
C position may better align the preferred shackle at-
tachment point in the LAC-3 prediction with an avail-
able physical position on the Extension Bar, enabling
a desired array site angle to be achieved.
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