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Figure 10-1. The radiation at 1 kHz from arrays with increasing number of units, from a single unit to 11 units (1, 3, 5, 7, 9 and 11). With 7 units in the array the sound radiation in the octave bands from 250 Hz to 8 kHz is shown in fig. 11-2. Figure 10-1. The radiation in octave bands from 250 Hz to 8 kHz for a line array with 7 units. Figure 10-2. Similar to fig. 11-2, but the array is bent, see Table 1. 98