Meyer Sound M3D-SUB - Page 32

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Table 6. Minimum Allowable Bridle Leg Lengths with Varying Number of M3D Loudspeakers
Qty. of M3Ds
5:1 Safety Factor 7:1 Safety Factor
Angle Between Bridle
and Grid α (deg)
Minimum Allowable
Bridle Leg Lengths
Angle Between Bridle
and Grid α (deg)
Minimum Allowable
Bridle Leg Lengths
1 51˚ 2.00 ft. (610 mm) 51˚ 2.00 ft. (610 mm)
2 51˚ 2.00 ft. (610 mm) 51˚ 2.00 ft. (610 mm)
3 51˚ 2.00 ft. (610 mm) 51˚ 2.00 ft. (610 mm)
4 51˚ 2.00 ft. (610 mm) 51˚ 2.00 ft. (610 mm)
5 51˚ 2.00 ft. (610 mm) 51˚ 2.00 ft. (610 mm)
6 51˚ 2.00 ft. (610 mm) 56˚ 2.25 ft. (690 mm)
7 51˚ 2.00 ft. (610 mm) 60˚ 2.50 ft. (760 mm)
8 56˚ 2.25 ft. (690 mm) 63˚ 2.75 ft. (840 mm)
9 60˚ 2.50 ft. (760 mm) 66˚ 3.00 ft. (910 mm)
10 60˚ 2.50 ft. (760 mm) 68˚ 3.50 ft. (1070 mm)
11 63˚ 2.75 ft. (840 mm) 71˚ 3.75 ft. (1140 mm)
12 66˚ 3.00 ft. (910 mm) 71˚ 3.75 ft. (1140 mm)
13 66˚ 3.00 ft. (910 mm) 72˚ 4.00 ft. (1220 mm)
14 67˚ 3.25 ft. (990 mm) 73˚ 4.25 ft. (1300 mm)
15 68˚ 3.50 ft. (1070 mm) 74˚ 4.75 ft. (1450 mm)
16 71˚ 3.75 ft. (1140 mm) 76˚ 5.00 ft. (1520 mm)
When calculating allowable lifting loads and bridle leg
lengths for the lifting condition illustrated in Figure 35, use
Table 5 and Table 6 to determine the maximum number of
M3Ds and allowed bridle leg lengths required to conform to
the appropriate safety factor for the venue.
The distance between lifting lugs in the conguration shown
in Figure 35 is 29.35 inches (746 mm).