www.iFourWinns.com :: View topic

Hello, I have an H200 with a 5.0 Volvo Penta. My current prop is a 3 blade 21" pitch and wondering if a 4 blade would provide any advantage in acceleration and the ability to stay on plane at lower RPM's.

I have also been told that reversing with a 4 blade is not as responsive as a 3 blade but I am a little bit leery of that.

Your thoughts and feedback would be appreciated.

Thank you,

Dan

I have also been told that reversing with a 4 blade is not as responsive as a 3 blade but I am a little bit leery of that.

On the topic of props...is there a noticable difference from Alum to stainless?

WildH wrote:

On the topic of props...is there a noticable difference from Alum to stainless?

Yes!
I went from a Solas Amita 4 (14x21P) to a Solas HR Titan 4 (14x21P) and picked up 150RPM and 3MPH.
The Amita 4 was in brand new condition.

deafwish wrote:

WildH wrote:

On the topic of props...is there a noticable difference from Alum to stainless?

Yes!
I went from a Solas Amita 4 (14x21P) to a Solas HR Titan 4 (14x21P) and picked up 150RPM and 3MPH.
The Amita 4 was in brand new condition.

Do you typically match up the pitch when going to SS from Alum? I've been trying to do a little research and have found various opinions.

Author:	danrob [ Wed Sep 02, 2015 10:00 am ]
Post subject:	4 Blade Prop
Hello, I have an H200 with a 5.0 Volvo Penta. My current prop is a 3 blade 21" pitch and wondering if a 4 blade would provide any advantage in acceleration and the ability to stay on plane at lower RPM's. I have also been told that reversing with a 4 blade is not as responsive as a 3 blade but I am a little bit leery of that. Your thoughts and feedback would be appreciated. Thank you, Dan

Author:	zims1993 [ Wed Sep 02, 2015 10:22 am ]
Post subject:	Re: 4 Blade Prop
Its a yes to everything you have listed. Was by far the best thing I have done to our boat, going from 3 blade to 4 blade.

Author:	Paul I. [ Wed Sep 02, 2015 11:30 am ]
Post subject:	Re: 4 Blade Prop
danrob wrote: Hello, I have an H200 with a 5.0 Volvo Penta. My current prop is a 3 blade 21" pitch and wondering if a 4 blade would provide any advantage in acceleration and the ability to stay on plane at lower RPM's. I have also been told that reversing with a 4 blade is not as responsive as a 3 blade but I am a little bit leery of that. Your thoughts and feedback would be appreciated. Thank you, Dan Trim tabs would help you stay on plane too.

Author:	rpengr [ Wed Sep 02, 2015 5:14 pm ]
Post subject:	Re: 4 Blade Prop
danrob wrote: I have also been told that reversing with a 4 blade is not as responsive as a 3 blade but I am a little bit leery of that. I've never heard of that being an issue.

Author:	jontmiller [ Thu Sep 03, 2015 7:43 am ]
Post subject:	Re: 4 Blade Prop
So what ARE the drawbacks.....only top end speed?

www.iFourWinns.com https://www.smwebhead.com/phpBB3/

4 Blade Prop https://www.smwebhead.com/phpBB3/viewtopic.php?f=3&t=14439	Page 1 of 1

Author:	zims1993 [ Thu Sep 03, 2015 8:18 am ]
Post subject:	Re: 4 Blade Prop
I lost maybe 2mph on top end speed. I kept the same pitch, 19, when going from 3 blade to 4 blade. Do think I need to got to an 18 pitch 4 blade as my max rpm is right at 4100-4200.

Author:	danrob [ Wed Sep 09, 2015 5:16 pm ]
Post subject:	Re: 4 Blade Prop
My mechanic says that the engine should run at 5000 rpm when at top speed. Dropping pitch will increase RPM's

Author:	WildH [ Thu Sep 10, 2015 3:00 pm ]
Post subject:	Re: 4 Blade Prop
On the topic of props...is there a noticable difference from Alum to stainless?

Author:	deafwish [ Thu Sep 10, 2015 4:03 pm ]
Post subject:	Re: 4 Blade Prop
WildH wrote: On the topic of props...is there a noticable difference from Alum to stainless? Yes! I went from a Solas Amita 4 (14x21P) to a Solas HR Titan 4 (14x21P) and picked up 150RPM and 3MPH. The Amita 4 was in brand new condition.

Author:	WildH [ Fri Sep 11, 2015 8:33 am ]
Post subject:	Re: 4 Blade Prop
deafwish wrote: WildH wrote: On the topic of props...is there a noticable difference from Alum to stainless? Yes! I went from a Solas Amita 4 (14x21P) to a Solas HR Titan 4 (14x21P) and picked up 150RPM and 3MPH. The Amita 4 was in brand new condition. Do you typically match up the pitch when going to SS from Alum? I've been trying to do a little research and have found various opinions.

Author:	captkevin [ Fri Sep 11, 2015 10:56 am ]
Post subject:	Re: 4 Blade Prop
Interesting read about the difference between 3 & 4 blade props. http://www.boattest.com/resources/view_ ... ewsid=3276

Author:	deafwish [ Fri Sep 11, 2015 5:19 pm ]
Post subject:	Re: 4 Blade Prop
WildH wrote: deafwish wrote: WildH wrote: On the topic of props...is there a noticable difference from Alum to stainless? Yes! I went from a Solas Amita 4 (14x21P) to a Solas HR Titan 4 (14x21P) and picked up 150RPM and 3MPH. The Amita 4 was in brand new condition. Do you typically match up the pitch when going to SS from Alum? I've been trying to do a little research and have found various opinions. Generally, yes. Because of the strength of SS, the designers can add more rake & cupping - which also increases performance. Alloy prop's are generally an average blade design, due to flex.

Page 1 of 1	All times are UTC - 6 hours [ DST ]
Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/