Meyer Sound M3D-SUB - Manual (Page 34)

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Table 8. 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 ∝ (deg)
Minimum Allowable
Bridle Leg Lengths
Angle Between Bridle
and Grid ∝ (deg)
Minimum Allowable
Bridle Leg Lengths
2 43˚ 2.25 ft. (690 mm) 47˚ 2.25 ft. (690 mm)
3 43˚ 2.25 ft. (690 mm) 47˚ 2.25 ft. (690 mm)
4 43˚ 2.25 ft. (690 mm) 47˚ 2.25 ft. (690 mm)
5 43˚ 2.25 ft. (690 mm) 52˚ 2.50 ft. (760 m)
6 47˚ 2.25 ft. (690 mm) 56˚ 2.75 ft. (840 m)
7 52˚ 2.50 ft. (760 mm) 62˚ 3.25 ft. (990 m)
8 56˚ 2.75 ft. (840 mm) 64˚ 3.50 ft. (1070 mm)
9 60˚ 3.00 ft. (910 mm) 65˚ 3.75 ft. (1140 mm)
10 60˚ 3.00 ft. (910 mm) 68˚ 4.25 ft. (1300 mm)
11 62˚ 3.25 ft. (990 mm) 69˚ 4.25 ft. (1300 mm)
12 64˚ 3.50 ft. (1070 mm) 71˚ 4.75 ft. (1450 mm)
13 65˚ 3.75 ft. (1140 mm) 72˚ 5.00 ft. (1520 mm)
14 67˚ 4.00 ft. (1220 mm) 73˚ 5.25 ft. (1600 mm)
15 69˚ 4.25 ft. (1300 mm) 74˚ 5.75 ft. (1750 m)
16 70˚ 4.50 ft. (1370 mm) 75˚ 6.00 ft. (1830 mm)
When calculating allowable lifting loads and bridle leg
lengths for the lifting condition illustrated in Figure 36, use
Table 7 and Table 8 to determine the maximum number
of M3Ds and the allowed bridle leg lengths required to
conform to the appropriate safety factor for the venue. The distance between lifting lugs in the configuration shown
in Figure 36 is 36 inches (914 mm).