outboard on my 12 foot sailing dinghy- bracket or not?? - SailNet Community
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post #1 of 19 Old 04-09-2013 Thread Starter
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Question outboard on my 12 foot sailing dinghy- bracket or not??

I have got this beautiful 12 footish fibre glass hull with teak thwarts gunwhale and foredeck. built my my dad many a year ago, but garaged all her life so in good nick.
Tan coloured sails, gunter rig- very old school!

I am going to buy a 5 HP 2 stroke Tohatsu for fishing purposes.
I am trying to work out the best way to attach the outboard. could just what it on the transom.
But I wanted to see if there was a huge advantage to putting on an auxillary bracket. it's height adjustable, but would need to be permanently bolted to the back.
ugly? good idea? any thoughts?
photos attached (I hope!)
many thanks for any comments
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post #2 of 19 Old 04-09-2013
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Re: outboard on my 12 foot sailing dinghy- bracket or not??

The bracket would allow you to lift it up, and get it completely out of the water when you are sailing. My guess would be that, without the bracket, it would drag at least some when you are sailing. Since you have the bracket anyway, I would put it on the bracket.
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post #3 of 19 Old 04-09-2013
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Re: outboard on my 12 foot sailing dinghy- bracket or not??

My comment would be 5Hp is WAY to big

When I had a Hobie Holder 14' monohull the tiny Evinrude 3.5 HP 20 something pound was pretty big

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post #4 of 19 Old 04-09-2013
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Re: outboard on my 12 foot sailing dinghy- bracket or not??

I think the bracket's unnecessary weight... and the motor's probably bigger than you need. The wood on the transom seems to have been designed to accommodate a motor to port. If the shaft of the motor gets into the water that should be fine. Those small motors tilt up enough, I'd think, to clear. (If it's an internal tank be sure to close the fuel valve when you tilt...)
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post #5 of 19 Old 04-09-2013
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Re: outboard on my 12 foot sailing dinghy- bracket or not??

I agree with Faster.

The bracket is not only necessary weight, but it is moving the heavy motor even farther from the center of the boat.

If possible try a motor before buying it to see how the boat handles the weight. A 2hp Honda or Suzuki (both are under 30lbs) would probably work best and still move the boat along pretty well.

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post #6 of 19 Old 04-09-2013
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Re: outboard on my 12 foot sailing dinghy- bracket or not??

I see no reason for a bracket, just buy the right size motor. any small outboard should tilt well clear of the water. 5 hp may be a little oversize but the weight savings going down to a 2.5 are minimal.
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post #7 of 19 Old 04-09-2013 Thread Starter
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Re: outboard on my 12 foot sailing dinghy- bracket or not??

Thanks everyone- very clear and consistent advice!
I'll re-evaluate the HP rating then and not get the bracket.
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post #8 of 19 Old 04-09-2013 Thread Starter
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Re: outboard on my 12 foot sailing dinghy- bracket or not??

Thanks- I am thinking that with the amount of teak (this is one heavy dinghy!) that 3.5 or 5 HP wouldn't be too over powering, but glad to get the advice, as I was even thinking of going up to 8 HP! (I won't) Theo
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post #9 of 19 Old 04-10-2013
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Re: outboard on my 12 foot sailing dinghy- bracket or not??

I had a 16ft Wayfarer, and with a 3.5 Tohatsu 4-stroke it would do 6 kts, with the bow up high. It was almost thinking of planing. A 2.5 would have been sufficient.

So I think a 2.5 would be fine on your boat. I've had a Tohatsu 3.5 and Suzuki 2.5, both 4-strokes. The Tohatsu was better engineered - just an impression of the quality. However, there's no weight benefit of a Tohatsu 2.5 over the 3.5 - they're the same weight.

I wouldn't turn down a good condition used 2 stroke, they are very light and powerful. Given the fuel economy or lack of it, I'd go with a small external gas tank, say 3 gallons.

One consideration, if you have an engine with integral tank, it's rather tricky refueling if it's hanging off the stern on a bracket, especially in a chop.

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post #10 of 19 Old 04-10-2013
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Re: outboard on my 12 foot sailing dinghy- bracket or not??

My 1200lb Hotfoot 20 had a 3.5hp outboard and it motored at hull speed easily. A little 2 or 3 horse would be plenty for that boat. you will also like how light they are. I have a Yamaha 5hp 2stroke for my tender and even it is a bit of a pig to carry.

My first instinct would be to avoid the big ugly motor mount, but you want to make sure that the leg clears the transom, and that the prop won't hit the boat if the motor gets turned hard over when running.

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