Yanmar YSB-8 RPM to speed

Annapolis E-27

Member III
I finally installed a Tiny-tach to get an idea of the RPM being turned by my YSB-8. It looks like around 2500rpm at 4.5kts on average on my E-27. I believe the max rpm on the YSB-8 is somewhere around 3200rpm. Does all this sound about right?
 
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