New Df 90 prop

mandulamx · 29 July 2009, 18:42

I bought a 09 DF 90 .I am putting it on a 470 Joker boat.As you probably know,it comes
without a prop,so I need to buy one. I guess that best options would be 14x20 or 14x22 stainless. The boat is pretty small and I want to use it for criusing.50-70 km/day in Croatia
for the next two weeks :-). Would a 23 inch be even better?

Thank you

jyasaki · 30 July 2009, 15:37

I've found that prop selection is best accomplished by trial and error.

Even theoretically identical boats may run best with differing props.

See if the you can find a shop that will let you trial some different props, and select based on actual performance.

jky

Leo · 02 August 2009, 11:24

I saw this message a bit to late (see my previous reply to your message, sorry). So you did buy him? I've got some experience now with different props now on m Joker:
13 3/4 x 19 3 blades, 80km/h 6300rpm 1 person, 75 km/h 6100 rpm 4 persons
13 3/4 x 21 3 blades, 85km/h 6300rpm 1 person, 80 km/h 6100 rpm 4 persons
13 1/4 x 24 4 blades stainless, 90km/h 5300 rpm 1 person
13 1/4 x 20 3 blades stainless, 75km/u in the ref. limiter.

I'm waiting for a 13 3/4 x 22 stainless 4 blades prop from Yamaha now, fit's also and are better "cupped" (hope you write it like that :-). This should be the one I need.