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02-09-2015, 09:16 PM
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#21
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Guru
Join Date: Oct 2011
Posts: 11,926
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Quote:
Originally Posted by BHalecki
We own a 40' Marine Trader Labelle (weighs about 23,000 lbs) and we're looking to add a bow thruster. We want to avoid tunnel thrusters. We've researched both the Exturn Yacht Controller and the SideShift SS340.
The Yacht Controller seems to be quite a bit more expensive than the comparable Sideshift.
Can anyone give us advice re: their dependability, ease of use, and - most importantly - the amount of drag they introduce.
Thanks for whatever info you can offer.
Barb & Tim Halecki
"Promise Kept II"
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Barbara, I see this is your first post, and you have a spectacular thread drift. Don`t be disappointed, I don`t think so far anyone except Blue Yonder has experience of the external units you want to compare.
What prices were you quoted for each? I think the Exturn is a Scandinavian import, thus higher price.
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BruceK
2005 Integrity 386 "Sojourn"
Sydney Australia
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02-09-2015, 11:05 PM
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#22
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Senior Member
City: Seattle, WA
Vessel Name: Akeeva
Vessel Model: Nordhavn 50
Join Date: Apr 2014
Posts: 299
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I don't have any experience with an externally mounted bow thruster, but I'd be concerned about durability. What happens if you hit a log? A piece of ice? Can it handle bumping into a mooring buoy all night? Or a bump against the dock?
I like my bow thruster...it makes docking faster, easier, and less stressful. Could I use a spring line instead? Sure, most of the time, but the bow thruster is quicker and easier. And spring lines can be tough to use when singlehanded.
What's the cost differential between a conventional tunnel thruster and an externally mounted unit? It'd be a bummer to buy the external unit, only to repair it, replace it, or install a conventional tunnel thruster in a short time.
On edit: Some boaters are anti-thruster for a variety of reasons—they enable people to "cheat" and avoid "real" seamanship, they're unreliable (not true in my experience), they're another thru hull, they give people false confidence, and on and on. Most of us use our boats for pleasure, and if a thruster (or thrusters) make boating more fun and less stressful and you can afford it, by all means get a thruster. Just know its limitations—run time (for electric), how much wind and current it can push against, etc.
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02-09-2015, 11:24 PM
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#23
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Guru
Join Date: Apr 2014
Posts: 1,288
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The Yacht controller product is probably high quality since the companies other products are and after meeting and talking to the company owner I have even greater faith in his products. Remember sometimes you get what you pay for. One of the advantages of an external unit vs tunnel is a longer run time before overheating due to cooling effect of surrounding water. If it were my boat I would go with a tunnel and an Imtra variable speed unit. I remember what trucks and cars were like to steer before variable ratio power steering, shore I could do it and still can but I rather not. The same goes for dealing with a boat. I have done and was good with the single engine no thruster thing, but I much prefer the twin engine bow and stern variable speed thrusters and the yacht controller JS and remote. If you want to enjoy your boat and have the bucks why not go for more control, and you can occasionally practice the single engine with no help just so you know what to do if the peripherals quit for some reason.
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02-10-2015, 12:01 AM
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#24
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Veteran Member
City: Mooloolaba
Vessel Name: Ohana
Vessel Model: DeFever 72
Join Date: Jul 2011
Posts: 82
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I recently had the unpleasant experience of docking a yet to be mine 70ft boat where the port motor had electronic control issues amd could not be used. I had a powerful side power bow thruster and the starboard motor amd was able to reverse it into its slip with lots of help from the thruster. They certainly can get you out of trouble.
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02-10-2015, 06:47 AM
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#25
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Guru
City: Ft Pierce
Vessel Name: Freedom
Vessel Model: Albin 40
Join Date: Oct 2011
Posts: 22,997
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Quote:
Originally Posted by Capt.Bill11
Actually, a bow thruster would be of even more help to a twin screw boat with one engine out then it is to a single screw boat.
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02-10-2015, 09:50 AM
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#26
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Guru
City: San Diego
Join Date: Oct 2007
Posts: 6,580
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Quote:
Originally Posted by Capt.Bill11
Actually, a bow thruster would be of even more help to a twin screw boat with one engine out than it is to a single screw boat.
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Interesting comment. I actually pondered that when I decided to make an offer on a Ocean Alexander 42. The boat, although it's a twin, has a 10hp, duel prop bow thruster which, given my personal history with thrusters, caused me great joy!
Years ago, when entering my marina, my 54' sport fisher's electronic controlled engines failed. I was heading for some parked boats (although at a very slow speed) and could not shift into reverse. The boat had a Venus bow thruster and I laid on it in an attept to swing the bow 90% to port. It worked just in time and I laid the boat up against two concrete pillars that supported finger docks that slipped a 55' boat. Luckily (for me) the slipped boat did not extend out beyond her slip length & I missed her by mere inches.
I'm a big supporter of bow thrusters and I think their contributions to safe boating go far beyond just getting your boat in the slip.
"Sandpiper" (42' OA)
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Done with diesel power boats! Investigating all electric!
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02-10-2015, 11:42 AM
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#27
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Guru
City: Punta Gorda, FL
Vessel Name: Aweigh
Vessel Model: Nordic Tug 42
Join Date: Jun 2014
Posts: 628
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Putting aside the have or have not controversy, In MO a bow thruster is never as strong as you would like it to be when you really need it.
Everything that I have heard about the external thrusters is that your little finger pushing on the bow would have the same effect.
If you want the most effective thruster, get a hydraulic thruster. Short of that get the biggest one that will fit in the new hole that you are getting in your bow.
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02-10-2015, 12:51 PM
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#28
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Guru
City: Fort Pierce
Vessel Name: Florita Ann
Vessel Model: 1982 Present
Join Date: May 2014
Posts: 1,935
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Thrusters are truly a gift from God.
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02-10-2015, 01:02 PM
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#29
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Guru
City: Ft Pierce
Vessel Name: Freedom
Vessel Model: Albin 40
Join Date: Oct 2011
Posts: 22,997
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Quote:
Originally Posted by seasalt007
Putting aside the have or have not controversy, In MO a bow thruster is never as strong as you would like it to be when you really need it.
Everything that I have heard about the external thrusters is that your little finger pushing on the bow would have the same effect.
If you want the most effective thruster, get a hydraulic thruster. Short of that get the biggest one that will fit in the new hole that you are getting in your bow.
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Wow....try some more boats with electric thrusters...many work beyond "just enough".....
They are not miracle workers...but like many say...you shouldn't ever really need one...but in some spots...its just what you need....even weaker ones.
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02-10-2015, 01:20 PM
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#30
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Guru
City: Trenton
Join Date: Apr 2012
Posts: 1,270
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I've never had a bow thruster but I've always wanted one.
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Al Johnson
34' Marine Trader
"Angelina"
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02-10-2015, 02:54 PM
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#31
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Senior Member
City: Palm Springs CA
Vessel Name: On The Rocks
Vessel Model: Gulf Star MKII
Join Date: Apr 2012
Posts: 109
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02-10-2015, 04:53 PM
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#32
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Guru
City: Port Townsend
Vessel Name: The Promise
Vessel Model: Roughwater 35
Join Date: Sep 2012
Posts: 1,565
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That's a nice installation OtR. I wonder how much of a cost difference if any VS. a tunnel unit? Up here I would worry a log would knock it right off.
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02-10-2015, 05:38 PM
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#33
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Guru
Join Date: Oct 2011
Posts: 11,926
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John(OTR), User feedback is useful, just what the OP needs. Are they Exturn brand units, how was the fitting process,(easy, tough, cost), did you need more battery, etc.
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BruceK
2005 Integrity 386 "Sojourn"
Sydney Australia
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02-10-2015, 10:02 PM
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#34
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Guru
City: Punta Gorda, fl
Vessel Name: Escapade
Vessel Model: Nordic Tug 37 2002
Join Date: Jan 2015
Posts: 1,213
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I think thrusters are over rated. Just buy $2,000.00 worth of fenders and keep them chained together around your boat. On a serious note I agree with previous post, up size if you can and make sure you do the same to the size of power wire that you use.
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02-11-2015, 12:55 AM
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#35
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Guru
City: Mooloolaba
Vessel Name: Tidahapah
Vessel Model: Bert Ellis Timber motor cruiser
Join Date: Oct 2007
Posts: 1,828
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20 years I have been operating Tidahapah, single engine no thruster and no problems but as I get older and more cautious the thruster thoughts are more prevelant.
I was tieing up to a wall and 2 poles the other day with a 25 knot SE breeze and during and upon completion I thought a thruster would have been really handy and so did my mate on board , he is also the boat builder who has done a lot of work on Tidahapah during the last few years.
I said I didn't have the space in the fwd bilge to fit one, in a flash he was down there , tape in hand and before i know it he says no problems and we could fit one for about 8k, I think my Boss would be pretty happy with that so it has gone on the wish list.
As much as I have said a bow thruster is not required they really are a handy piece of equipment, always fit over size and for mine they should be tube mounted , especially in the bow as the appendage is surely prone to damage.
Any how that's my take on it.
Cheers
Benn
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Money: It's made round to go round , not flat to stack.
"Get out and do it"
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02-11-2015, 06:58 AM
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#36
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Enigma
City: Slicker?
Join Date: Oct 2007
Posts: 15,130
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Greetings,
Mr. T. Just for the sake of interest, how would one mount a thruster in a wooden hull? I expect epoxy would be involved?
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02-11-2015, 09:03 AM
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#37
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Guru
City: San Diego
Join Date: Oct 2007
Posts: 6,580
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Quote:
Originally Posted by Tidahapah
20 years I have been operating Tidahapah, single engine no thruster and no problems but as I get older and more cautious the thruster thoughts are more prevelant.......
As much as I have said a bow thruster is not required they really are a handy piece of equipment, always fit over size and for mine they should be tube mounted , especially in the bow as the appendage is surely prone to damage.
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Older, cautious? How about smarter? There are many adjectives that describe wisdom.
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Done with diesel power boats! Investigating all electric!
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02-11-2015, 10:40 AM
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#38
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Senior Member
City: Spring Lake, MI
Vessel Name: Great Laker
Vessel Model: American Tug 34
Join Date: Jan 2011
Posts: 346
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Quote:
Originally Posted by seasalt007
Everything that I have heard about the external thrusters is that your little finger pushing on the bow would have the same effect.
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Great Laker has a bow and stern thruster (both electric). I can spin the boat rapidly in a perfect circle either way, and they are quite responsive in 1 or 2 second bursts. One limitation is they can overheat with long on times and shut down. That is one advantage of the hydraulic thrusters.
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02-11-2015, 01:21 PM
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#39
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Guru
City: Sarasota/Ft. Lauderdale
Join Date: Apr 2014
Posts: 5,438
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Quote:
Originally Posted by Great Laker
Great Laker has a bow and stern thruster (both electric). I can spin the boat rapidly in a perfect circle either way, and they are quite responsive in 1 or 2 second bursts. One limitation is they can overheat with long on times and shut down. That is one advantage of the hydraulic thrusters.
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Are they external thrusters? Or tunnel?
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02-11-2015, 02:14 PM
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#40
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Senior Member
City: Spring Lake, MI
Vessel Name: Great Laker
Vessel Model: American Tug 34
Join Date: Jan 2011
Posts: 346
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The bow is tunnel with 2 props, installed at the factory. The stern has an external tube with one prop, coupled through a hole in the transom to the motor inside, and was installed by the AT dealer after delivery to the Great Lakes. It is directly under and protected by the boarding platform.
They can be operated singly or jointly by a single integrated controller shaped like a boat. Twist the boat and you get pure rotation. Push the boat sideways and you get pure translation. Push the nose sideways to move the bow in that direction, and ditto for the stern.
All made by Sidepower.
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