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[Darren007]

I’ve just bought a new tug, 51” with a single 120mm screw, it has a bow thruster too. I would like some help with how to wire it up and diagrams would be so helpful. It has 12v battery and I will buy 2 hobbyking 1060’s for the esc.im looking for a diagram so i can get it wired up correctly. Forgot to add it had a large car blower fan for the motor

[derekwarner]

Darren..........so many questions, yet so simple...............

If you contact a Model Boat Group in your area, a Member will I am sure view the model & electrics & offer a relatively simple solution 

Derek

[Darren007]

Would you be able to explain the wiring then?

[Colin Bishop]

There are some useful wiring diagrams originally produced for the Model Sl;pway range of kits and using ACTin Electronics components here:

http://vp-airsoft.co.uk/ms.html

There isn't a specific one for a single screw/bow thruster combination but you can take a typical single screw layout and then use a third channel for the thruster. The left hand horizontal stick would probably be best.

Colin

[DocMartin]

Sample wiring diagrams can also be found here:

https://www.rcgroups.com/forums/showthread.php?783582-Electrical-Discussion

Look at post #1 figure #4 to start.

Based upon the little information you have provided, I am going to venture a guess that your choice of ESCs is suspect.   The bow-thruster motor likely doesn't draw high amps (1060 being overkill) and your main motor (car blower motor) may draw more amps than the 1060 is designed for.  You may find better choices of ESC if you can determine the types of motors in the model.  With that you can look up the specifications of each motor.

As I said, just a guess without specific information.

[Darren007]

Thanks for everyone’s reply’s, the reason I was going to use x2 1060’s was I already have a hobbywing 1060 laying around so I was going to use one 1060 for the bow thruster and the other 1060 for the motor. If a 1060 isn’t able to handle the amps drawn by the motor would it be better to use a mtroniks marine 25amp esc for the motor? And the 1060 for the bow thruster

[Colin Bishop]

As DocMartin says, without knowing the specification and current draw of either item you are just guessing. The motor might well have a label with the specifications or you could Google car blower motor specifications to get a ball park figure.

If the bow thruster is Raboesch then you can look up that unit and the recommended motor and from that find the motor specs and power consumption.

Most of the info you need will be out there.

Colin

[Tug Fanatic]

Nothing beats an wattmeter or an ammeter so that you now exactly how much power the motor is using. Only then can you be sure.

My experience suggests that the blower motor will be around 5-10amps on 12v but that is a wild guess as I don't know the motor nor the prop. A 120mm prop is big!

Large motors can have very high current demands as they start up. I would go larger than a 25amps esc if in doubt after measuring the numbers.   

I would also use fuses between the battery and the esc and another between the esc and the motor.

[Darren007]

The hobbywing 1060 is 60amps so these would be ok to use then?

[gribeauval]

yes. never had a blower motor pull more than 5 amps even with weed around a prop.

[Tug Fanatic]

yes. never had a blower motor pull more than 5 amps even with weed around a prop.

I have seen well above 5 amps on modern blower motors.

[Darren007]

I’m not sure how to post pictures? I can email
Some pics over of the running gear if that would be ok

[Darren007]

I’m unsure on the motor as there’s no markings on it I can see but the bow thruster motor is a raboesch 400

[chas]

Hi Darren, it's very likely indeed that your speed controllers are fine, and I doubt you want to buy and learn to use a wattmeter, although that would be ideal.
 You could try this sequence to connect it all up.
 Only connect and test one thing at a time.
Plug one esc into the receiver, being certain the plug goes in the correct way around. Normally the correct socket on the receiver is marked ailerons, or number 1.
Connect the output wires to the motor, then the battery wires , make absolutely sure they are the right way round.
Switch on the transmitter, then the receiver, in that order and test it. If the motor runs properly when you wiggle a transmitter stick then all well so far.
 Don't try anything else until you've reported back here because their are a couple of things to be sure of before connecting the other speed controller.
 If any of the above doesn't make sense, just tell us and we'll talk you through it.

[Tug Fanatic]

..................and I doubt you want to buy and learn to use a wattmeter, although that would be ideal......................

I agree which I why I also suggested an ammeter. I would have thought that most people have access to a multimeter with a 10amp range.

Wattmeters make nice gifts.

[chas]

I also agree tug, but I'm trying to talk him through this one step at a time. I was going to suggest using a meter, if he has one after the motors running, off load it will be safe to try. At the moment we don't even know if the tx and rx are bound, or maybe even old gear.

[Darren007]

Right with help from everyone on here I’ve managed to get the motor and bow thruster working nicely with old esc’s that were in the tug. Now the problem is I’ve blown the rudder servo! Well I’ve blown 2 actually. I’m not sure if it’s user error? I’ve never used these old sort of esc’s before. I’ll try and post some pics

[Darren007]

I’m working from my iPhone and it won’t allow me to put pics for some reason

[DocMartin]

What voltage are you supplying your receiver with? 

[Darren007]

6v battery pack, at first I used a 9v battery pack as the 6v pack wasn’t charged

[DocMartin]

Check your servos for the recommended supply voltage.  Older servos were designed to run on 4.8V.  With the advent of digital servos, voltage supply of 6V became common. 

You said you were running the RX at 9V.  That voltage is what your servos were seeing.  If you are using 4.8V servos, that 9V application may account for your "bricking" those servos.

[Darren007]

Right that explains that then. The servos were very old, they were jr servo NES-517

[Darren007]

I will buy a new servo and try again but only using the 6v battery pack

[HMS Invisible]

Right with help from everyone on here I’ve managed to get the motor and bow thruster working nicely with old esc’s that were in the tug. Now the problem is I’ve blown the rudder servo! Well I’ve blown 2 actually. I’m not sure if it’s user error? I’ve never used these old sort of esc’s before. I’ll try and post some pics

You've had some good advice so far but the process is only as good as the information you give.
For example, what old escs, radio, and rudder servos?
I'm guessing the blown servos were wired in the sequence  +,-,s
In that case, you'd blow up a third with a 6v battery.

[Darren007]

Indeed some valuable advise given. It has one servo for the rudder and I’ve blown 2 servos. Unfortunately I can’t post pics for some reason, maybe to do with me working off my iPhone