Reply
 
Thread Tools Search this Thread
 
Old 26 May 2006, 13:02   #1
Member
 
Country: UK - Wales
Town: Pwllheli-North Wales
Boat name: Delta 1
Make: Delta
Length: 6m +
Engine: Mariner 90hp Optimax
Join Date: Mar 2001
Posts: 2,367
4 Blade Prop

Any one used a four blade prop?

Anygood?
__________________

__________________
JG Marine Services Ltd Specialist Safety Boat Services

Bodfuan Shoot Ltd Traditional British Game Shooting
Jono Garton is offline   Reply With Quote
Old 26 May 2006, 13:10   #2
Member
 
Country: UK - England
Town: Calshot
Boat name: Swan Song
Make: LM 27
Length: 8m +
Engine: Bukh 20
MMSI: ?
Join Date: Feb 2004
Posts: 206
Hi Jono
I had one on a honda 90 on a 6mtr rib,i thought she used to over-rev(4000rpm at 23knots)but it wouldn't redline(30 knots at 5500 rpm)
so i don't know if that helps but i found it strange.It also aerated as easily as a regular prop through corners on that particular rib.I wouldn't pay for one!
__________________

__________________
About 1.5 litres per hour (slower but easier on the pocket)
Dino is offline   Reply With Quote
Old 26 May 2006, 16:48   #3
Member
 
Country: UK - Wales
Town: swansea
Boat name: Too Blue
Make: BLANK
Length: 8m +
Engine: Suzuki DT225
Join Date: Mar 2004
Posts: 12,791
Got a 4 blade 19" on my boat - obviously not a clue what it is like YET but from the sea trials the acceleration is supposed to be awesome. Top speed was 41kts but it is a very fine pitch - should be about 21" or even 23".

Will post some details ASAP!!!
__________________
codprawn is offline   Reply With Quote
Old 26 May 2006, 17:24   #4
Member
 
Country: Ireland
Town: Dublin & Enniscrone
Boat name: K'adó
Make: Redbay
Length: 7m +
Engine: Suzuki 300
Join Date: Oct 2004
Posts: 613
4 blade

Jono

I was using a standard yamaha 13 3/4 x 19 Yamaha three blade.
After much consultation I have just purchased a 4 blade 13 3/4 x 17 four blade Solas prop in stainless steel. I am told it will:

Give better grip in the rough stuff
Give better accekeration
Handle the heavy loads better(i often carry 250 ltrs petrol)
Slow down my top speed a little.
Conserve fuel by approx 10%

I will be fitting it for the run to Scotland next weekend and will let you know.

rgds
__________________
Take it easy ....but, take it all the way.
Ezgoing is offline   Reply With Quote
Old 27 May 2006, 05:06   #5
Member
 
Country: Other
Make: FB 55
Length: 10m +
Join Date: May 2001
Posts: 1,711
Quote:
Originally Posted by codprawn
Got a 4 blade 19" on my boat - obviously not a clue what it is like YET but from the sea trials the acceleration is supposed to be awesome. Top speed was 41kts but it is a very fine pitch - should be about 21" or even 23".

Will post some details ASAP!!!
As usual, everything you write about is hearsay, read somewhere or 'someone told me'. Why don't you gain some experience in a RIB and then base your assertions on fact! Blah, bla, blah!
__________________
Charles is offline   Reply With Quote
Old 27 May 2006, 07:59   #6
Member
 
Country: UK - Wales
Town: swansea
Boat name: Too Blue
Make: BLANK
Length: 8m +
Engine: Suzuki DT225
Join Date: Mar 2004
Posts: 12,791
Quote:
Originally Posted by ct01
As usual, everything you write about is hearsay, read somewhere or 'someone told me'. Why don't you gain some experience in a RIB and then base your assertions on fact! Blah, bla, blah!

And why don't you just......
__________________
codprawn is offline   Reply With Quote
Old 27 May 2006, 09:08   #7
Member
 
Country: Other
Town: Stanley, Falkland Is
Boat name: Seawolf
Make: Osprey Vipermax 5.8
Length: 5m +
Engine: Etec 150
Join Date: Mar 2006
Posts: 3,688
Not offering an opinion on 3 vs 4 because I know nothing about it, but ....

Most new engines I have seen advertised seem to come with a 3 blade prop fitted by the manufacturer. Is this just because it is cheaper to make, or is it because it does the best all-round job? A pretty competitive industry so you would think that the manufacturer would fit whatever gave them an advantage unless there is a big cost difference....?

Just my thoughts anyway.
__________________
BogMonster is offline   Reply With Quote
Old 27 May 2006, 12:02   #8
RIBnet supporter
 
LURCHER's Avatar
 
Country: UK - England
Town: Tisted Hampshire
Boat name: Hot Lemon
Make: Scorpion
Length: 8m +
Engine: Inboard
MMSI: 235
Join Date: May 2002
Posts: 766
Send a message via MSN to LURCHER
Here Here Codprawn , some people love to have a go at you for no reason , you liven up the forum and after all it is only your opinion !
__________________
www.hiremarquee.co.uk
LURCHER is offline   Reply With Quote
Old 27 May 2006, 14:15   #9
Member
 
Country: UK - Wales
Town: swansea
Boat name: Too Blue
Make: BLANK
Length: 8m +
Engine: Suzuki DT225
Join Date: Mar 2004
Posts: 12,791
Quote:
Originally Posted by LURCHER
Here Here Codprawn , some people love to have a go at you for no reason , you liven up the forum and after all it is only your opinion !
Thanks for that - I made it perfectly clear that I hadn't experienced the prop myself YET. In fact the person who told me was someone I respect greatly and is VERY experienced - Bob at Shoreline - Suzuki main dealer.

Still it is pretty obvious which people on here have the "attitude" problems!!!
__________________
codprawn is offline   Reply With Quote
Old 27 May 2006, 17:55   #10
Member
 
Country: UK - Channel Islands
Town: St Helier JERSEY
Boat name: Barney
Make: Scorpion
Length: 8m +
Engine: 350 Yamaha
Join Date: Dec 2005
Posts: 92
I know I keep harping on about it. But we've just fitted a 5 blader to Quick Exit, and I can't argue with the results. We cruise at 34 knots at 4200 rpm, that's 600 rpm less, I'm saving stacks of fuel, and have achieved a better top speed of 46.2 knots (4 knots faster).

Also, we went out in a F8 on Saturday, and the drive, and grip was fantastic.

Surely more blades = more drive in the water?
__________________

__________________
FreeTrader is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 19:37.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.