Okay, so some of you may have seen the little Flatacraft Force 4 that I have (pictures on the gallery).
She has been powered in the past by an Evinrude 25 but I'm finding that with two adults (read "fat porkers") and minimal equipment she is slow and takes an age to plane.
I've been offered a Mariner 40 (2 cyl, 2-stroke) which is in mint condition apart from the prop so it seems like the ideal time to ask the question:
what pitch should I go for on such a small RIB with a nice engine like that powering it?
I'm looking for rapid acceleration and little else.........