Backup Motor & Dinghy Motor? CS27 & SiB - SailNet Community
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post #1 of 9 Old 03-04-2016 Thread Starter
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Backup Motor & Dinghy Motor? CS27 & SiB

Hey all,

I'm getting ready to buy a motor for my SIB, a Zodiac 260. I'm wondering, is it a wise idea to use my Sib's outboard as a back up motor(I mean, I would use it in a pinch either way but..). Should I get a motor that's a little larger than recommended for the SIB just in case? Thoughts...
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post #2 of 9 Old 03-04-2016
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Re: Backup Motor & Dinghy Motor? CS27 & SiB

What use is intended for the dinghy? If it's just back and forth to shore from anchor or mooring, then a small lightweight motor is going to be a lot nicer to work with.( and less costly).. OTOH if you intend to use it for longer runs to a supply point, lots of fishing, then a faster setup might be desirable.

Probably the most effective way to use whichever as a 'backup' would be to tie the dinghy securely to one quarter of the CS, and 'push tow' that way. Often referred to as hip towing. I recently helped move a CS 27 35 NM in this fashion,unfortunately on a calm day (otherwise we could have sailed her) but we did have a small RIB and a larger motor - making 4-4.5 knts this way. A 2-3 HP motor would have been slower, of course, but may well still have gotten us there.

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".. there is much you could do at sea with common sense.. and very little you could do without it.."
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Re: Backup Motor & Dinghy Motor? CS27 & SiB

Yeah, My slip is located on a Island, the marina runs a tender during "business" hours but I'll be going to it at all hours. The harbour I'll be crossing is a super busy one and there will be some night crossings. I'm opting for a 6hp instead of a 4hp(which is recommended by the SIBs specs), although to me a nine is what I really want. Cost is very similar to the used motors I'm looking at.
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Re: Backup Motor & Dinghy Motor? CS27 & SiB

You can put any size motor on a boat. But; When you exceed the recommended max you accept the responsibility...Dale
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post #5 of 9 Old 03-05-2016
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Re: Backup Motor & Dinghy Motor? CS27 & SiB

my boat has an outboard backup. the only real issue i would see aside from the possible custom work needed to mount it to the back is that youll need a long shaft for the boat, and short shaft is more suitable for a dinghy.
the outboard is an 8hp and the inboard diesel is a 7.5 hp. ive never pushed the outboard as hard as it can go, i make about 5-6 knots at just less than half throttle.
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Re: Backup Motor & Dinghy Motor? CS27 & SiB

Practical but it doesn't help the looks! With that set up a short shaft would work Ok......Dale

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Re: Backup Motor & Dinghy Motor? CS27 & SiB

Look at Matt's image/setup, and here's the stern of the CS 27 (btw.. didn't know they made it in that awful colour)..



You can see how problematic any outboard mounted there, or even the motor mount, would be with that rather massive rudder on a narrow transom.

Ron

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Re: Backup Motor & Dinghy Motor? CS27 & SiB

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Originally Posted by Lake Superior Sailor View Post
Practical but it doesn't help the looks! With that set up a short shaft would work Ok......Dale
that motor is a long shaft. waves at 4' and the prop starts breaking through the surfacer. anything over 6-7 ft and the prop leaves the water entirely. a short shaft on my boat would be practically unusable except in glass conditions.
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Re: Backup Motor & Dinghy Motor? CS27 & SiB

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Originally Posted by Patrick.a7 View Post
Hey all,

I'm getting ready to buy a motor for my SIB, a Zodiac 260. I'm wondering, is it a wise idea to use my Sib's outboard as a back up motor(I mean, I would use it in a pinch either way but..). Should I get a motor that's a little larger than recommended for the SIB just in case? Thoughts...
Are you using to drop guests back to Queens Quay? Or just using it for beer runs . I guess it all comes down to how you will use it MOST of the time. Lugging a 9hp isn't much fun. Especially with no swim swim platform to help.

I've noticed in the last few years that the amount of water taxis in the harbour has grown a lot - might be an option to go with a smaller outboard and hire a taxi when you need to do a fast crossing.
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