WinGD X72DF - Sound Pressure Level at Funnel Top of Exhaust Gas System

Marine Installation Manual 2021-08 7-7
7 Engine Emissions
7.2 Engine noise
X72DF
Figure 7-6 Sound pressure level at funnel top of exhaust gas system
SM-0142
NR60
70
90
80
110
120
130
31.5 63 125 250 500 1k 2k 4k 8k
130
120
110
100
90
80
70
60
50
Octave band centre frequency in [Hz]
140
Lp [dB]
Overall average
LpA in dB(A)
20 30
40
50
8X72DF
5X72DF
8X72DF
5X72DF