Genuinely curious and temporarily confused: what are the common rules of thumb again?<br /><br /><br />Going from an alu prop to the same pitch in SS lowers WOT rpm by approx......<br /><br />Adding cup to a prop lowers rpm by approx ......<br /><br />Going down one inch in pitch increases rpm by ......<br /><br />Going down one inch in diameter increases top end speed by ...... %<br /><br />Going down one inch in diameter increases rpm by ....<br /><br />Going from 3 blades to 4 lowers rpm by ....<br /><br />For a common moderate V-hull, an expected prop slip rate would in the range of ..... to......<br /><br /><br />Thanks for your help!
