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Old 03 August 2010, 17:47   #1
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Country: UK - Scotland
Town: Aberdeenshire
Boat name: Sula
Make: Ribcraft 4.8m
Length: 4m +
Engine: Tohatsu 60hp + aux
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Auxilliary engine on Ribcraft 4.8m

Still waiting delivery of my new Ribcraft 4.8m. Anyone fitted an auxilliary engine on this particular boat? Main engine is a 2-stroke Tohatsu 60hp. Currently looking at either a Yamaha longshaft 4-stroke 4hp, (F4AMHL) or a relatively rare 2-stroke 5hp (5CSL), both mint condition and weigh roughly the same at 22kg. I do have reservations about fitting an auxilliary, as it never works out the way you want it, but having it is reassuring. Can it be mounted directly on the transom, or does it need to go on a transom bracket? (Definately not fitting an adjustable stainless steel Plastimo one again - used to rattle like a bleed'n toolbox!)
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Old 03 August 2010, 20:11   #2
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Country: UK - Wales
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A friend of mine used a Twatsoo 3.5hp aux on his RC4.8. He's sold the boat now and would sell the outboard if you're interested. It's a 2005 model, grey colour, std shaft and immaculate. Probably no more than an hour's use from new.
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Old 04 August 2010, 04:48   #3
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Country: UK - Scotland
Town: Aberdeenshire
Boat name: Sula
Make: Ribcraft 4.8m
Length: 4m +
Engine: Tohatsu 60hp + aux
MMSI: 235087213
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Quote:
Originally Posted by Downhilldai View Post
A friend of mine used a Twatsoo 3.5hp aux on his RC4.8. He's sold the boat now and would sell the outboard if you're interested. It's a 2005 model, grey colour, std shaft and immaculate. Probably no more than an hour's use from new.
Would I get away with a Twatsoo 3.5hp? I had one on the Zodiac Pro 7-man. It was 2008, zero hours and purchased from new. Sold it as part of the boat package as I thought it would be underpowered for the Ribcraft.
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Old 04 August 2010, 05:32   #4
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Country: UK - Wales
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He was happy with it. It'll be slow, but would get you out of trouble/back to shore (eventually).
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Old 04 August 2010, 05:35   #5
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He was happy with it. It'll be slow, but would get you out of trouble/back to shore (eventually).
Would it get him away from the shore though.....
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Old 04 August 2010, 06:48   #6
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Would it get him away from the shore though.....
.....eventually
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Old 04 August 2010, 06:52   #7
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As I used to say with my aux ... quicker than either rowing or swimming
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Old 06 August 2010, 04:15   #8
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Aux engine

I guess every 1/2 hp will count at that level. Neither engine will get the boat past the displacement speed of course, so you'll probably get about 5mph from the Yamaha, less from the Tohatsu.
I might buy that engine if you don't want it....how much is it? I could do with a lightweight trolling engine for the canal.
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Old 06 August 2010, 05:13   #9
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Country: UK - Wales
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He's looking for 300
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Old 09 May 2011, 04:02   #10
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Country: UK - Scotland
Town: Aberdeenshire
Boat name: Sula
Make: Ribcraft 4.8m
Length: 4m +
Engine: Tohatsu 60hp + aux
MMSI: 235087213
Join Date: Jun 2007
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I'm resurrecting this thread because I'm now at the stage that I have to source an auxilliary before heading to the west coast in mid July. With the main engine (Twatsoo 60hp) now in position, there is just enough space at the starboard side for a small 2-stroke engine, up to 4hp. From a quick measure of the transom at this point, a standard shaft would fit (say 19" depth from outboard saddle/bracket to top of anti-cavitation plate), although a long-shaft might prove to be more reliable given the extra depth. Any preference for which shaft length you would go for? Any pictures in position would be helpful too.
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