What size prop?

[merc850xs]

I have a Merc850 its going on a 16' fiber glass half cabin. Will be used in river for fishing, up to 4 adults 2 kids. Need help on prop size. Found a site that suggested 13/17, 13/19 and 13/21. I don't know WOT. Also are 2 blades ok, and are brass props any good?

Thanks

Dave

 

[Bondo]

Re: What size prop?

With that kinda Load,.... I'd Start with the 17" prop,+ Go from There.......

Both 2 blade props,+ Bronze Props are pretty much Obsolete,.........
Aluminum 3 blades are Industry Standards today......