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Outboard for 2.7 Al bottomed rib.


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#1 lateral

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Posted 25 May 2019 - 12:44 PM

I've had a 15hp, too heavy but fun when you need to blat. Nightmare to stow.

I've had a 4hp (oldy) but its getting past its use by and is a little under powered.

Is modern 3.3hp too small? (Nice and light at 13kg.)

Seems 5hp is a good compromise  at 20kg.

 

Yeah.....I know, I know.... don't be a doris.


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#2 Island Time

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Posted 25 May 2019 - 02:19 PM

May as well go small. I have a 2.8 RIB. Big motor is a US mercury 15, 2 stroke, weight is either 32 or 36 kg, forget which. Planes with 3 adults. Can ski behind it.
Tried 4, 5, 6 and 8 hp, wouldn't plane with 2 people . So I got a 2.5 hp 4 stroke, 12kg with a full tank.
Mostly now just use the 2.5 unless going somewhere far away, or wish to tow water toys....
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#3 Jon

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Posted 25 May 2019 - 02:30 PM

Doris
I’ve got a Nissan (Tohatsu) 5hp, 20kgs so easy to manage, plannes with two kids or one adult on a 3m rib
Once in a while if we have a long way to go it would be nice to have a 10 or 15 but the downside of handling it I think would way out way that occasion.
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The best sailors do it two handed

#4 Bad Kitty

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Posted 25 May 2019 - 03:36 PM

I've got a really low hours 3.3 merc 2 stroke for sale, only a few hours use but a couple of years old.

Happy to work out a good price?


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#5 lateral

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Posted 26 May 2019 - 08:28 AM

I've got a really low hours 3.3 merc 2 stroke for sale, only a few hours use but a couple of years old.

Happy to work out a good price?

Thanks for offer BK. I'm thinking 5hp at this stage.


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#6 Knot Me... maybe

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Posted 26 May 2019 - 10:37 AM

A 5hp, one of the Mercury ones that has a internal tank but you can also clip on a external tank.

Those are very good.


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#7 Priscilla II

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Posted 26 May 2019 - 02:56 PM

Go old school and run it on driftwood.
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#8 Island Time

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Posted 26 May 2019 - 03:25 PM

https://www.trademe....93da2337842-005


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#9 raz88

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Posted 26 May 2019 - 09:48 PM

I have a lightweight 2.7 rib, and 2 motors, an 8hp yamaha and a merc 3.3. the 8hp will happily plane the dinghy with 2 90kg adults. I use mine for the odd mission like setting a longline and the 8hp gives me the flexibility to get more places to do that.

 

I like the 8 and if i had to choose one or the other would pick that. But if the dinghy was heavier and it didn't plane with 2 adults then in practise it wouldn't really do anything that the 3.3 doesn't. 

 

So my advice is

5hp if you use the dinghy a lot on your own and your dinghy is light enough to perform with you in it.

8hp if you use the dinghy a lot with 2 people (and you have a light enough dinghy that it performs with 2 people in it)

a 2 or 3hp if you don't use it much outside boat hopping/short trips ashore


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#10 lateral

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Posted 27 May 2019 - 05:02 PM

Excellent, thanks. Great bit of applied logic.
Going 5hp.
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