Typical prop pitch

[evm1024]

Hi All,

Time to replace the prop on out dinghy's outboard. I was wondering what pitch you have on your outboard.

To this end I am thinking along the lines of less pitch for more push but less top speed. (9.25 x 9 vs 9.25 x 10 or 11)

Of course the details are important. Johnson 9.9 2 stroke with a 2.4:1 reduction lower end mounted on a 3.1m Zodiac Cadet 310-AL inflatable.

So, what have you got?

From some rough calculations the top end is 15 Kt with the 9" and closer to 20 with the 11". Of course slip is a major unknown but factored in.