Re: PROP Advise
also, the suggested wot is 5750 at the top end.
OK; use that.
The 10% slip is what is considered usual(10-13%) for a V hull with normal(low) drive height. The more you raise the slip number, the more you raise the calculated rpm.
If you leave the rpm box blank, and input realistic numbers in the other boxes, then click "calculate" above the rpm box, if gives you the rpm estimate that it should be turning based on the other data.
If you use 6800 rpm/21% slip, you probably won't get the pitch right the first time.
Going to a 21 pitch should work, if hole shot isn't a consideration.
Checking these numbers gives you an indication that something doesn't seem right.
Them you start checking things that might be likely to cause this; tach is off, prop hub is slipping a little causing the high rpm, prop is damaged, etc.
The easiest thing to check first is the tach. If that pans out, try to figure out why your SST prop is producing pontoon boat slip numbers.
