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SAE J2005 and J1970

Old 09-05-2017, 06:01 AM
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Originally Posted by donzi-joey
I have read this more than once and I can not tell how the testing should be done on twin engine boats . Can anyone help with this ?

With twins should both motors be running @ the Time of testing or just one ?

Thanks

Joe
above is the procedure for testing exhaust noise. Each state or commission that makes the laws for the area your boating in can set the noise limit law. So if law states vessel can be no louder than 90 db at idle. If you got one, two or three engines. The vessel gets tested with all running
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