4x4 to 4x3 prop?

[mnm99]

Currently I have a set of 4 blade front and rear Bravo 3 22P props. What RPM / speed / gain or loss would going to 4 x 3 22P props do? Just wondering.

 

[Sea Rider]

You need to go one pitch less if going for a 4 blade prop from a 3 blade prop to be around same wot rpm achieved with 3 blade while maintaining same diam. This is not exact science, will need to test under trial at wot.

Happy Boating

 

[mnm99]

I'm asking to go from a dual 4 blade to 4blade / 3blade setup