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02 August 2012, 12:41
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#1
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Member
Country: UK - England
Town: Royal Wootton Bassett
Length: 8m +
Engine: 250
Join Date: Jul 2008
Posts: 8,047
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RC 585 Aux & SIB Outboard size?
Hi, I'm looking for an AUX engine for my Ribcraft 585 that can also be used on and plane a Pastimo 270 SIB.
I was thinking of a Suzuki DF6 but I didn't know if it would get the SIB on the plane?
Thanks in advance
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02 August 2012, 13:08
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#2
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Member
Country: UK - England
Town: Dorset & Hants
Boat name: Streaker/Orange
Make: Avon/Ribcraft
Length: 4m +
Engine: 50Yam/25 Mariner
Join Date: Apr 2007
Posts: 5,551
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HI Alex - I think I've been down this route .......
I had (and now Trevor has it ?) a 2.6 slatted floor bombard tender which with just me and a 3.5hp 2 stroke on the back used to plane
2 up it stood no chance.
I think with a 6 you should be 'Ok' ish with 2 light adults , but I found so much depends on weight distrubution and how calm the water is.
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02 August 2012, 20:04
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#3
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Member
Country: UK - England
Town: Royal Wootton Bassett
Length: 8m +
Engine: 250
Join Date: Jul 2008
Posts: 8,047
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I guess that a 585 aux would need to be around 6hp?
The sib will take an 8hp but will that be over doing it?
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02 August 2012, 20:27
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#4
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RIBnet admin team
Country: Ireland
Length: 4m +
Join Date: Feb 2008
Posts: 14,910
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What is the situation here regarding the shaft length of the Aux? Will the Ribcraft use a short shaft, as the SIB won't like planing with a long?
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02 August 2012, 20:38
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#5
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Member
Country: UK - England
Town: Royal Wootton Bassett
Length: 8m +
Engine: 250
Join Date: Jul 2008
Posts: 8,047
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Quote:
Originally Posted by willk
What is the situation here regarding the shaft length of the Aux? Will the Ribcraft use a short shaft, as the SIB won't like planing with a long?
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Hummm, I had assumed that i would need a short shaft, but I'm not near the boat to measure
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02 August 2012, 20:54
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#6
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Member
Country: UK - Wales
Town: West Wales
Make: Vipermax 5.8, SR4.7
Length: 5m +
Engine: 150 Opti, F50EFi
Join Date: Sep 2005
Posts: 6,299
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Your RC585 has an xl transom so a std shaft aux would need a drop down bracket.
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02 August 2012, 21:00
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#7
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Member
Country: UK - England
Town: Dorset & Hants
Boat name: Streaker/Orange
Make: Avon/Ribcraft
Length: 4m +
Engine: 50Yam/25 Mariner
Join Date: Apr 2007
Posts: 5,551
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Dangerous stuff time .....Do you really need an aux ?
But if your going to do it and the SIB is rated to 8 ..get a 10 !
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02 August 2012, 21:03
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#8
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RIBnet admin team
Country: Ireland
Length: 4m +
Join Date: Feb 2008
Posts: 14,910
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Quote:
Originally Posted by Downhilldai
Your RC585 has an xl transom so a std shaft aux would need a drop down bracket.
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DHD, does Standard mean Long (20") or Short (15")?
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02 August 2012, 21:07
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#9
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Member
Country: UK - England
Town: Royal Wootton Bassett
Length: 8m +
Engine: 250
Join Date: Jul 2008
Posts: 8,047
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No not really, but I thought it would be good if it could be used as a back up.
The sib will be used for fishing and for those calm evenings when I can't be bothered to launch the 585 it will also be used as a tender when searching for new beaches
So I guess I go small and get from A to B or go large for a bit of
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03 August 2012, 09:20
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#10
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RIBnet supporter
Country: UK - England
Town: Warwickshire
Boat name: Impulse
Make: Ribcraft
Length: 5m +
Engine: Suzuki 140
Join Date: Sep 2011
Posts: 1,020
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Investing in a pair of oars for the RC is a cheaper option
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03 August 2012, 09:43
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#11
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Member
Country: UK - England
Town: Bournemouth
Boat name: Seadrive
Make: Capelli Tempest 470
Length: 4m +
Engine: Suzuki DF70
MMSI: 235079113
Join Date: Jul 2008
Posts: 550
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Quote:
Originally Posted by AJ.
Investing in a pair of oars for the RC is a cheaper option
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Yes and has the added advantage you can fend off (with a big clout!) other RC 585's that come too close!
And if you break down, Avocet seems to be a champion tower
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03 August 2012, 10:35
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#12
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RIBnet supporter
Country: UK - England
Town: Warwickshire
Boat name: Impulse
Make: Ribcraft
Length: 5m +
Engine: Suzuki 140
Join Date: Sep 2011
Posts: 1,020
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Quote:
Originally Posted by longjohn
Yes and has the added advantage you can fend off (with a big clout!) other RC 585's that come too close!
And if you break down, Avocet seems to be a champion tower
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THAT WAS ACCIDENTAL!!! The smile you see in the video is my cacking it face.
Good call though Longjohn
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03 August 2012, 11:40
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#13
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Member
Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,671
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I know someone who took the longshaft 6 off the back of the rib, put it on the Dinghy (forget the make / model) but got waaaay better performance from the dinghy with a shortshaft 4, even though they were 2HP down. The drag of the long leg totally overcame the extra gee gees.
Also remember that in small engine teritory "short" & "long" are different lengths (physically less long) to the standard lengths implied by "short" & "long" on the bigger engines.
I phrase like that so as not to cause too much confusion with the word "shorter" -
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