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Old 25 September 2018, 16:25   #41
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Country: UK - England
Town: Southampton
Boat name: SMH Rib / War Shot
Make: Ribtec / Scorpion
Length: 4m +
Engine: 100hp Yam/150hp opt
Join Date: Sep 2003
Posts: 2,069
RIBase
Quote:
Originally Posted by kalokeri View Post
Ok, an update.

I managed to trailer the boat out of the water and yes it did have quite a bit of water trapped in the hull. I also gave it a good clean underneath as there we a few barnicles growing too.
Anyway, launched again and it now zips along pulling 27Kts @ 5000 rpm which is a bit more like it.

Thanks for your help guys!
That's good news - looks like your engine is performing as it should.

Given the RPM you're getting you should be able to improve a little by fitting a prop with a smaller pitch.
I'm guessing max RPM for that engine is 5500-6000 ish.
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