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MG-3D/M MULTIPURPOSE GRID AND ACCESSORIES
PN: 05.132.036.01 B2
Page 11 of 32
Meyer Sound Laboratories Inc.
www.meyersound.com
T: +1 510 486.1166
F: +1 510 486.8356
NOTE 1: For center point configurations, up to 24 MILO loudspeakers with a 5:1 safety factor or 17
MILO loudspeakers with a 7:1 safety factor can be flown only under the following conditions:
Monitoring of the stress load on the two rigging points is done with load cells between the hoist and
the MG-3D/M multipurpose grid, so that either the front or back pickup point used to hang the MG-
3D/M does not exceed 4700 lbs (2131 kg) at 5:1 or 3350 lbs (1520 kg) at 7:1 on the center pick-up
hole.
The total load must be calculated so that it is spread between the front and back points at the final
array position (grid angle and accumulative splay angle of the system) and does not exceed the
above stated weights on either the front or rear point.
An MG-3D/M grid plus 24 MILO loudspeakers weighs approximately 6000 lbs (2721.55 kg). As long as
that total weight is split between the front and rear points so that neither point supports more than 4700
lbs (2131 kg) at 5:1 or 3350 lbs (1520 kg) at 7:1, the safety factor is maintained.
NOTE 2: For corner point configurations, up to 24 MILO loudspeakers at a 7:1 safety factor can be
flown only under the following conditions:
Monitoring of the stress load on the front and back rigging points is done with load cells between the
hoist and the MG-3D/M multipurpose grid, so that either the front or back set of points used to hang
the MG-3D/M do not exceed the total weight load of 5250 pounds (2381.36 kg).
The total load must be calculated so that it is spread between the front and back points at the final
array position (grid angle and cumulative splay angle of the system) and does not exceed the above
stated weight on either the front or rear set of points.
An MG-3D/M grid plus 24 MILO loudspeakers weighs approximately 6000 pounds (2721.55 kg). As long
that total weight is split between the front and rear set of points so that neither set supports more than
5250 pounds (2381.36 kg), the 7:1 safety factor is maintained.
NOTE: Use the Meyer Sound array rigging calculator to compute center-of-gravity data and load
distribution between front and back points. Visit www.meyersound.com/arraycalculator to download.
CAUTION: This calculator has been found to match actual load cell measurements to within 16% of the
total weight of the array, and within 3.5 degrees of top grid angle.