1 | Start with maximum vessel speed. |
2 | Disengage the propeller as quickly as possible to allow the vessel to slow down by itself. |
3 | For every 1 to 2 knots speed reduction, read the Noise estimate from the Extras menu and make a note of the value.. If the noise decreases quickly towards the same level as at 0 knots when the propeller has been disengaged, this means that
the propeller is a main source of noise. If the noise at decreasing vessel speed is more or less equal to the noise level
at increasing speed, the noise is probably flow-noise, or caused by electrical cables, motors or instruments. Usually the
noise is a combination of these sources.
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