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Old 03-26-2017, 10:21 AM   #1
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'Speed Control" thrusters?

As we await the launch of our boat, we've been cruising the area and especially the local marinas. Yeasterday, we saw a boat that had speed control thrusters demonstrated. It looked kind of neat...
Our boat uses Side-Power thrusters and has both a bow and stern thruster. We did not opt for the speed control as just the thought of thrusters seemed so luxurious.
We can always update our thrusters if we decide later that we want to.
So I put it to the forum, would you want variable speed thrusters on your boat if available?
Bruce
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Old 03-26-2017, 10:26 AM   #2
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Greetings,
Mr. BrB. As I understand it the limitation of electrical thrusters is the length of time they can be engaged without self shutting down so IF a speed control model allowed a longer operational window I can see some advantage but at what cost to maneuverability?
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Old 03-26-2017, 10:37 AM   #3
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I don't consider electric bow thrusters super reliable to start with. When redoing mine, I chose to avoid the added complexity of variable speed.

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Old 03-26-2017, 10:44 AM   #4
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Originally Posted by Bruce B View Post
As we await the launch of our boat, we've been cruising the area and especially the local marinas. Yeasterday, we saw a boat that had speed control thrusters demonstrated. It looked kind of neat...
Our boat uses Side-Power thrusters and has both a bow and stern thruster. We did not opt for the speed control as just the thought of thrusters seemed so luxurious.
We can always update our thrusters if we decide later that we want to.
So I put it to the forum, would you want variable speed thrusters on your boat if available?
Bruce
Yes, we have variable speed thrusters. So, do you have DC thrusters? If so, I think it's an easy add-on if desired at some point. On the Sunseeker we have Sidepower SEP210/250TC. The P is the indicator of variable speed. The reason for variable speed is that more people are upsizing their thrusters for severe conditions and this allows the use of the up-sized thrusters but maintaining control when just a small amount of power is needed. Speed control also has a hold function if you want to hold position beside a dock to automatically do that for you.

Most AC and Hydraulic thrusters I've encountered are variable speed, just seems to be an option on DC.
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Old 03-26-2017, 12:26 PM   #5
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So I put it to the forum, would you want a variable speed thruster on your boat if available?
My answer is "yes" although my bow thruster is a 24volt Sidepower. Here's a name that is seldom mentioned.....Wesmar. They make all kinds of marine gear and they also have a line of DC Proportional Power (another name for variable speed) Bow thrusters. The company is very proud of their products as is indicated in their prices. (Damned expensive!) They will retrofit Sidepower and several other brands in the same tunnel. It's worth a look.

WESMAR DC Pro Thruster Series
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Old 03-26-2017, 12:55 PM   #6
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My answer is "yes" although my bow thruster is a 24volt Sidepower. Here's a name that is seldom mentioned.....Wesmar. They make all kinds of marine gear and they also have a line of DC Proportional Power (another name for variable speed) Bow thrusters. The company is very proud of their products as is indicated in their prices. (Damned expensive!) They will retrofit Sidepower and several other brands in the same tunnel. It's worth a look.

WESMAR DC Pro Thruster Series
Sidepower can change the one he has to variable.
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Old 03-26-2017, 01:07 PM   #7
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I am sure that we will use the boat as delivered first.
I watched a demonstration of the low power hold-the-boat-against-the-dock operation yesterday and I can easily see its usefulness.
Yes, if we want the feature it is a fairly simple upgrade.
Having never owned a boat with a bow thruster(s) before, I was simply curious about what people thought of the option.
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Old 03-26-2017, 01:56 PM   #8
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So I put it to the forum, would you want variable speed thrusters on your boat if available?
Bruce
No.
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Old 03-26-2017, 02:03 PM   #9
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No.
Why not? Most of the boats you're on have hydraulic thrusters don't they?
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Old 03-26-2017, 06:53 PM   #10
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Our thrusters are variable speed, hydraulic powered. I definitely like the variable speed, but living without them it is no big deal either. You just pulse the thrusters.
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Old 03-26-2017, 09:18 PM   #11
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Just out of interest I wonder how many on TF actually have thrusters on their boats?
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Old 03-26-2017, 09:21 PM   #12
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My single-engine boat has a bow thruster. It makes life easy and spares the transmission.
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Old 03-26-2017, 09:24 PM   #13
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Just out of interest I wonder how many on TF actually have thrusters on their boats?
Yes, on all boats.
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Old 03-26-2017, 09:33 PM   #14
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Our thrusters are variable speed, hydraulic powered. I definitely like the variable speed, but living without them it is no big deal either. You just pulse the thrusters.
yes just pulse the thrusters that make "manual" variable speed...

In hydraulic, variable speed are really more complicated and sensitif
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Old 03-26-2017, 09:34 PM   #15
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Just out of interest I wonder how many on TF actually have thrusters on their boats?
Start a poll.
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Old 03-26-2017, 09:46 PM   #16
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Why not? Most of the boats you're on have hydraulic thrusters don't they?
True. But I've never seen the point of variable speed thrusters.

If I need a little bit of thrust I just bump the trusted for a second or two.

I guess if I was running a boat with a large, oversized thruster maybe.

But most of them are a bit undersized for those times when you really need them.
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Old 03-26-2017, 09:58 PM   #17
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I am currently in the process of installing a stern thruster in my 41 President now. Have it all done except the battery wiring. I would prefer a bow thruster but in my boat it is not nearly as easy as a stern thruster. I will probably eventually install a bow thruster. As we get older if it enables us to keep boating longer then thrusters are well worth the cost and complexity.
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Old 03-26-2017, 10:24 PM   #18
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I like the idea of variable power on thrusters. How many things can you think of that are either off or balls to the wall. Having had thrusters I hated the idea of full on and the loud sound and wake and would have much prefer the precision of a variable plus the fact that you only use the amount of battery you need.
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Old 03-26-2017, 10:32 PM   #19
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True. But I've never seen the point of variable speed thrusters.

If I need a little bit of thrust I just bump the trusted for a second or two.

I guess if I was running a boat with a large, oversized thruster maybe.

But most of them are a bit undersized for those times when you really need them.
That's a trend changing to make them oversized so they'll be there for you when you really need the thrust, but then that calls for variable for other times. Or just bump it.
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Old 03-26-2017, 10:35 PM   #20
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But most of them are a bit undersized for those times when you really need them.
I notice that also I really don't understand why that very ofter undersized.
very stupide because when you really need thruster that when you have wind and if they undersized that really not efficient when you have wind...
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