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Old 30 August 2001, 18:17   #1
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Country: UK - Scotland
Town: Scotland
Make: Tornado
Engine: Yamaha 80hp Outboard
Join Date: Aug 2001
Posts: 2
Back Up Engine

Can anyone please advise me on a suitable back up engine for a 5.5m RIB, typically loaded with 4 people with gear. The info I am looking for is minimum HP and if there are any "popular" choices amoungst fellow Ribsters.

Andrew.
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Old 31 August 2001, 02:08   #2
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Country: Greece
Town: Athens
Boat name: Sofia - Konstantina
Make: Wave
Length: 5
Engine: Outboard 2-stroke 115 Mercury
Join Date: Apr 2001
Posts: 82
Hi,

Use the "search" button on top of the screen and search for the word "aux".

There are two past threads about backup engines where you will find a number of opinions that might be helpful.

Dimitris
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Old 31 August 2001, 02:37   #3
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Country: Greece
Town: ATHENS
Boat name: SUN KISS II
Make: Nuova Bat 9 Falcon -
Length: 5m +
Engine: Outboard Mercury 115
Join Date: Jun 2001
Posts: 639
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Auxilliary engine

Going with the a ratio 1 Hp / m, which is rather good for ribs you have to look for a 6 - 8 Hp max.

Michael
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Old 04 September 2001, 16:50   #4
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Country: UK - England
Town: Ardnamurchan
Boat name: Out of the Blue
Make: Ribcraft 585
Length: 5m +
Engine: Yamaha 100
MMSI: 235 079 253
Join Date: Jul 2000
Posts: 236
I use a Marina 4 sail. Specifically designed as an auxillary for sailing boats, it is a 4hp 2 stroke engine and therefore lightweight. It pushes my 5.85 Ribcraft alone at about 3kts. You wont go much faster with a bigger engine and mine is small enough to lie on the deck just ahead of the transom bolted onto a specially designed bracket. Highly recommended.
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Old 04 September 2001, 18:47   #5
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Country: Ireland
Town: Loch Lurgain
Boat name: an t-easnach
Make: Gemini
Length: 5m +
Engine: Honda 50
Join Date: Oct 2000
Posts: 138
on a related note (and not wanting to underplay the importance of an auxy engine) has anyone come across oarlocks for ribs? A set of oars could be more useful than the paddles with which I occasionally try to impersonate Hawaii Five-O extras.
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