1990 DP-A drive prop question.

[JaseBosto]

I am looking for spare props for my DP-A drive. Someone is selling a "volvo penta stainless prop F3 DuoProp". That is what it is titled as. Will this fit on my DP-A drive?

 

[Don S]

Re: 1990 DP-A drive prop question.

No, those are for the SX/DP-S drives. You need either B (alum) or C (SS) series props.

 

[JaseBosto]

Re: 1990 DP-A drive prop question.

Thanks for the reply Don,
What does the number designation mean after the letter? B6 for example?

 

[Don S]

Re: 1990 DP-A drive prop question.

It's an arbitrary pitch number given by Volvo. Since both props are different pitches and designed to work together as a set, the higher number would indicate more pitch than a lower number. Don't mix props from different sets, it doesn't work.

 

[Bondo]

Re: 1990 DP-A drive prop question.

It's an arbitrary pitch number given by Volvo. Since both props are different pitches and designed to work together as a set, the higher number would indicate more pitch than a lower number. Don't mix props from different sets, it doesn't work.

Ayuh,.... Does Volvo list the expected performance/ pitch for their arbitrary numbers,..??

Like if yer turnin' 400 rpms low, 'n wanta swap, How far, which way do ya go...

I've only seen a few numbers, all single digit...

Are the Merc BIIIs done the same,..?? Same scale maybe,..??

 

[jestor68]

Re: 1990 DP-A drive prop question.

Ayuh,..

Are the Merc BIIIs done the same,..?? Same scale maybe,..??

Mercury lists their Bravo III prop sets as having the same pitch, but different diameters; with the front LH prop being the larger by an average of 1.5 inches.

Available pitches are 19,20,21,22.5,24,26, and 28.

 

[JaseBosto]

Re: 1990 DP-A drive prop question.

I currently have a "B6" duo prop set on now. Being that I have not had this boat in the water, I will wait to get another set till after I see the performance of this set. The boat is only 22' long so, I dont expect the need to get something like "B4" or "B3". Any guesses on performance with this set? 22' Larson Hampton sport cruiser, 305 volvo penta "501" with DP-A outdrive. Boat weight is listed as 3300lbs.
I will say as a side note, that the sides and the bow on this boat are higher than alot of 22' boats Ive seen. Looks bigger than 22'.