Happy Thanksgiving.
From what I read each 1” in pitch changes rpm close to 200. If that is correct, and I’m at 3950, and go from 21 to 17 pitch, that will put me at the high range of WOT rpm. I also wonder what a quarter inch in diameter and a 4th blade play into it.
Sorry, I have a boating friend that suggests strongly going to 19 pitch.
It is a 17 year old engine and I don’t want to over rev.
Thanks
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