Twin motors
Twin motors
This thread has become very complicated. Just do what everyone has no doubt tried Experiment .you blow a speed controller you buy a better one or like me you have a good friend called Ali express lol
Liked by Rookysailor and Scratchbuilder and
Twin motors
Good morning Doug.
Thank you for your comprehensive, precise and detailed response.
Now I understand correctly.
I read several times to better translate.
I would never have done this:
"on no account should the positive (red) motor leads of a dual ESC speed controller be connected together!"
Not even before knowing your answer.
Good morning Lew.
You're right, I was speaking in general, about the ESC "Putting the pedal to the floor (on a RC transmitter) is ramping up the voltage".
I do all the measurements with the stick at maximum.
Thanks to Lew and Doug.
Now I understand the meaning of your interventions much better and I thank you because I am a little less ignorant than before.
Thank you for your comprehensive, precise and detailed response.
Now I understand correctly.
I read several times to better translate.
I would never have done this:
"on no account should the positive (red) motor leads of a dual ESC speed controller be connected together!"
Not even before knowing your answer.
Good morning Lew.
You're right, I was speaking in general, about the ESC "Putting the pedal to the floor (on a RC transmitter) is ramping up the voltage".
I do all the measurements with the stick at maximum.
Thanks to Lew and Doug.
Now I understand the meaning of your interventions much better and I thank you because I am a little less ignorant than before.
Liked by Colin H
Twin motors
Perhaps we might have overlooked something: "Maximum Power". Putting the pedal to the floor (on a RC transmitter) is ramping up the voltage. Possibly a perception mis-use when comparing to amperage?
Lew
Florida, USA
Lew
Florida, USA
https://www.RCFlorida.org/lmb
Liked by Colin H and AlessandroSPQR
Twin motors
Hi Alessandro,
Ref your query-
"I wasn't talking about making a Y branch on an ESC to control two motors. Mine was a question not a statement.
Rather, I was asking if the ESCs, already built with double outputs at the factory, are not in fact like this, that is, we do not have a Y connection (a parallel between the outputs), which we do not explicitly see. Or do they have more electronics than single output ESCs?"
My dear Alessandro,
Dual ESC means exactly that. Two complete and independent ESCs are included in the package. Some also include rudder mixer circuits to automatically adjust the motor speeds according to the rudder commands.
E.g. for 'rudder hard to port' the port motor would be automatically commanded to run slower or even in reverse to assist the rudder command. Programmable by the user.
ON NO ACCOUNT SHOULD THE POSITIVE (RED) MOTOR LEADS OF A DUAL ESC SPEED CONTROLLER BE CONNECTED TOGETHER! WHY?
Because they are the outputs of two totally independent ESC circuits which may be carrying different control signals (pulse trains) to the two motors, especially if the dual ESC includes the rudder mixer function or a separate mixer unit is attached.
Or if independently operated from the TX (so called Tank Steering) the control pulses will be different according to the operator's commands.
Thus connecting the two red leads of a Dual ESC will likely result in serious or terminal damage to it. At the very least loss of control of the model😭
Lew is also right that stall current of the motors is more important than power when scaling an ESC for a boat and it's motor.
Power is about performance, stall current is about survivability of ESC, motor --> model.
Doug 😎
Ref your query-
"I wasn't talking about making a Y branch on an ESC to control two motors. Mine was a question not a statement.
Rather, I was asking if the ESCs, already built with double outputs at the factory, are not in fact like this, that is, we do not have a Y connection (a parallel between the outputs), which we do not explicitly see. Or do they have more electronics than single output ESCs?"
My dear Alessandro,
Dual ESC means exactly that. Two complete and independent ESCs are included in the package. Some also include rudder mixer circuits to automatically adjust the motor speeds according to the rudder commands.
E.g. for 'rudder hard to port' the port motor would be automatically commanded to run slower or even in reverse to assist the rudder command. Programmable by the user.
ON NO ACCOUNT SHOULD THE POSITIVE (RED) MOTOR LEADS OF A DUAL ESC SPEED CONTROLLER BE CONNECTED TOGETHER! WHY?
Because they are the outputs of two totally independent ESC circuits which may be carrying different control signals (pulse trains) to the two motors, especially if the dual ESC includes the rudder mixer function or a separate mixer unit is attached.
Or if independently operated from the TX (so called Tank Steering) the control pulses will be different according to the operator's commands.
Thus connecting the two red leads of a Dual ESC will likely result in serious or terminal damage to it. At the very least loss of control of the model😭
Lew is also right that stall current of the motors is more important than power when scaling an ESC for a boat and it's motor.
Power is about performance, stall current is about survivability of ESC, motor --> model.
Doug 😎
Young at heart 😉 Slightly older in other places.😊 Cheers Doug
Liked by AlessandroSPQR
Twin motors
Evenin' All,
I have watched this thread with interest, and occasionally some amusement😉 or despair.😮
Lew came closest to the right answer👍
Not all ESCs, even today, include overload protection. And the reaction time, i.e. before disaster, is never quoted. Never mind us oldies who still have several older working ESCs without such alleged protection.
So Phil, the basic answer to your original question is YES YOU CAN😊
But there are certain precautions to be taken.
As others have rightly said👍 the ESC must be capable of handling the total current draw of both motors under load. (Simple Vulcan logic Jim😁)
But Lew finally hit the nail on the head with Stall Current!
And this ties in with Bill's "not recommended" comment. To whit, 'if there's a problem, e.g. stall, with one motor both will be out of commission and the boat stranded'.
Not necessarily Bill! Simple remedy to this is just fit quick blow fuses in the + leads to each motor, value a few amps below the rated stall current of the motors.
Then if one motor stalls the fuse blows and isolates it from the ESC and second motor.
So with the second motor (and some skilful course rudder corrections to compensate for the asymmetric thrust😉) you can make it back to base.
I have run my twin shaft destroyer this way for 30+ years without problems.
PLEASE NOTE EVERYONE- THIS ONLY WORKS WITH BRUSHED MOTORS!
YOU CAN NEVER UNDER ANY CIRCUMSTANCES USE ONE ESC TO DRIVE TWO BRUSHLESS MOTORS!!!! WHY?
Because (regardless of In- or Out-runner) the Brushless ESC electronics must know, in real time, where the rotor (the rotating bit😁) is in relation to the stator, the static bit which you have bolted to your motor mount.
To enable this Brushless motors send feedback info to the ESC either from built in sensors or, in the cheaper but no less effective sensor-less versions, by monitoring the back emf pulse (voltage spike) created when the last stator pole (coil) was switched off.
(As Faraday discovered but Tesla first really understood and used in his ground breaking inventions - when a current flows through a coil both an electric AND a much stronger magnetic field are created around the coil. When the current is shut off these fields collapse and their energy flows back into the coil, producing the voltage pulse, the back emf (electromotive force😁) which the ESC registers).
Still with me folks? WAKE UP AT THE BACK THERE!!
So you can guess the problem😉
If the ESC receives two feedback signals from the two motors how should it know which to react to? It will likely go schizophrenic or into a catatonic coma.
Either way it will probably be totally confused and 'out of service'.
I haven't tested this, and don't propose to risk my hard earned ESC/motors by doing so.
But it is sure that 1 ESC to 2 brushless motors is a NO GO!
Cheers, Doug😎
I have watched this thread with interest, and occasionally some amusement😉 or despair.😮
Lew came closest to the right answer👍
Not all ESCs, even today, include overload protection. And the reaction time, i.e. before disaster, is never quoted. Never mind us oldies who still have several older working ESCs without such alleged protection.
So Phil, the basic answer to your original question is YES YOU CAN😊
But there are certain precautions to be taken.
As others have rightly said👍 the ESC must be capable of handling the total current draw of both motors under load. (Simple Vulcan logic Jim😁)
But Lew finally hit the nail on the head with Stall Current!
And this ties in with Bill's "not recommended" comment. To whit, 'if there's a problem, e.g. stall, with one motor both will be out of commission and the boat stranded'.
Not necessarily Bill! Simple remedy to this is just fit quick blow fuses in the + leads to each motor, value a few amps below the rated stall current of the motors.
Then if one motor stalls the fuse blows and isolates it from the ESC and second motor.
So with the second motor (and some skilful course rudder corrections to compensate for the asymmetric thrust😉) you can make it back to base.
I have run my twin shaft destroyer this way for 30+ years without problems.
PLEASE NOTE EVERYONE- THIS ONLY WORKS WITH BRUSHED MOTORS!
YOU CAN NEVER UNDER ANY CIRCUMSTANCES USE ONE ESC TO DRIVE TWO BRUSHLESS MOTORS!!!! WHY?
Because (regardless of In- or Out-runner) the Brushless ESC electronics must know, in real time, where the rotor (the rotating bit😁) is in relation to the stator, the static bit which you have bolted to your motor mount.
To enable this Brushless motors send feedback info to the ESC either from built in sensors or, in the cheaper but no less effective sensor-less versions, by monitoring the back emf pulse (voltage spike) created when the last stator pole (coil) was switched off.
(As Faraday discovered but Tesla first really understood and used in his ground breaking inventions - when a current flows through a coil both an electric AND a much stronger magnetic field are created around the coil. When the current is shut off these fields collapse and their energy flows back into the coil, producing the voltage pulse, the back emf (electromotive force😁) which the ESC registers).
Still with me folks? WAKE UP AT THE BACK THERE!!
So you can guess the problem😉
If the ESC receives two feedback signals from the two motors how should it know which to react to? It will likely go schizophrenic or into a catatonic coma.
Either way it will probably be totally confused and 'out of service'.
I haven't tested this, and don't propose to risk my hard earned ESC/motors by doing so.
But it is sure that 1 ESC to 2 brushless motors is a NO GO!
Cheers, Doug😎
Young at heart 😉 Slightly older in other places.😊 Cheers Doug
Liked by Rookysailor and Doogle and
Twin motors
Hello Commodore H.
You wrote: [I believe you are “over thinking” this.]
You're right! reason to sell, ahahahahah.
I think about it too much; This forum actually interested me a lot due to the topics covered and I'm spending a lot of time there.
I've never spent so much time on the internet, so much so that my wife is getting suspicious.
In my opinion, she suspects that I have a lover, or that she is in some "strange" chat. ahahahahahaha.
Will you tell him, please, that I only write about naval models?
it's AndyN's fault!
joke I have to thank AndyN who introduced me to this forum.
You wrote: [I believe you are “over thinking” this.]
You're right! reason to sell, ahahahahah.
I think about it too much; This forum actually interested me a lot due to the topics covered and I'm spending a lot of time there.
I've never spent so much time on the internet, so much so that my wife is getting suspicious.
In my opinion, she suspects that I have a lover, or that she is in some "strange" chat. ahahahahahaha.
Will you tell him, please, that I only write about naval models?
it's AndyN's fault!
joke I have to thank AndyN who introduced me to this forum.
Twin motors
I believe you are “over thinking” this.
I prefer Mtronics speed controls. In the event of signal loss they will just shut your motors down. They are simple to set up. If you don’t need independent control for maneuvering two motors in parallel works just fine. The current draw of the motors is different if the boat is held in place or moving in any case.
I like the 20amp esc version. You can buy one and if your not happy later buy another one.
I prefer Mtronics speed controls. In the event of signal loss they will just shut your motors down. They are simple to set up. If you don’t need independent control for maneuvering two motors in parallel works just fine. The current draw of the motors is different if the boat is held in place or moving in any case.
I like the 20amp esc version. You can buy one and if your not happy later buy another one.
The sure way to succeed is, just try one more time
Liked by Colin H and AlessandroSPQR
Twin motors
Hi Bill and Lew, thanks for your input. I'm learning a lot.
Consider that, as I am not a modeler of RC planes and helicopters, I am almost unfamiliar with radio controls. I'm just learning them.
I rely mostly on memories of electricity and electronics that I had as a boy. Distant memories.
I hope I understood your comments correctly.
To Bill.
I agree with you, with two motors I would also prefer two ESCs, but for different reasons.
I wasn't talking about making a Y branch on an ESC to control two motors. Mine was a question not a statement.
Rather, I was asking if the ESCs, already built with double outputs at the factory, are not in fact like this, that is, we do not have a Y connection (a parallel between the outputs), which we do not explicitly see.
Or do they have more electronics than single output ESCs?
To Lew:
I don't know if I understand everything, I hope so.
The economic argument is very clear.
Before assimilating the information I am reading in this forum, I would like to make sure I understand correctly.
Therefore, the direct current electric motor, if braked or even blocked, absorbs much more current than a free motor. This is clear. I consider a propeller engine spinning in water without impediment other than fluid friction.
The ESC, as you say, has its own protection in case of overload. Ok I think I understood correctly.
Certainly the most important factor to consider is the inrush or stall current, perhaps I mistranslate.
But I don't understand why you don't look at the maximum power.
When I imagine electrical loads (users) I have to be careful, in the electrical field, that their absorption powers are not higher than the power supply. For example, if an electrical device normally absorbs 4 Amperes, I cannot power it with a device that is capable of delivering a maximum of 2 Amperes. In this case the power supply unit would be damaged.
Isn't this discussion applicable to motors and ESCs?
In other words, reformulating the question: If I power an electric motor with a single ESC, then add another in parallel, then another, then yet another and so on, I do not reach a point where the absorbed current is too much, even if there are no impediments on the crankshafts?
Loads in parallel decrease the equivalent resistance and therefore increase the absorbed current.
Even if a power supply or voltage regulator can withstand high inrush currents, is it capable of managing steady-state currents much higher than expected? If so then I'm learning something new.
Ah, logically I talk about absorbed current and power as if they were synonymous. Of course this is not the case, but I am only referring to the consequences of the Joule effect and at the same voltage, of course.
Then I thought, perhaps Lew knows very well the characteristics of the ESCs on the market and already knows that none of these can be put into "difficulty" by two brushed electric motors. So he makes a purely practical and pragmatic assessment rather than theoretical.
For example: "we know that the cheapest and poorest ESC makes up for 30A (I say randomly) and a motor normally, without impediments on the axis, absorbs around 4A (I say randomly), so I'm always calm because or one or two deaths makes no difference."
I repeat, mine are more questions than statements. Before assimilating I prefer to be sure that I have understood correctly.
Consider that, as I am not a modeler of RC planes and helicopters, I am almost unfamiliar with radio controls. I'm just learning them.
I rely mostly on memories of electricity and electronics that I had as a boy. Distant memories.
I hope I understood your comments correctly.
To Bill.
I agree with you, with two motors I would also prefer two ESCs, but for different reasons.
I wasn't talking about making a Y branch on an ESC to control two motors. Mine was a question not a statement.
Rather, I was asking if the ESCs, already built with double outputs at the factory, are not in fact like this, that is, we do not have a Y connection (a parallel between the outputs), which we do not explicitly see.
Or do they have more electronics than single output ESCs?
To Lew:
I don't know if I understand everything, I hope so.
The economic argument is very clear.
Before assimilating the information I am reading in this forum, I would like to make sure I understand correctly.
Therefore, the direct current electric motor, if braked or even blocked, absorbs much more current than a free motor. This is clear. I consider a propeller engine spinning in water without impediment other than fluid friction.
The ESC, as you say, has its own protection in case of overload. Ok I think I understood correctly.
Certainly the most important factor to consider is the inrush or stall current, perhaps I mistranslate.
But I don't understand why you don't look at the maximum power.
When I imagine electrical loads (users) I have to be careful, in the electrical field, that their absorption powers are not higher than the power supply. For example, if an electrical device normally absorbs 4 Amperes, I cannot power it with a device that is capable of delivering a maximum of 2 Amperes. In this case the power supply unit would be damaged.
Isn't this discussion applicable to motors and ESCs?
In other words, reformulating the question: If I power an electric motor with a single ESC, then add another in parallel, then another, then yet another and so on, I do not reach a point where the absorbed current is too much, even if there are no impediments on the crankshafts?
Loads in parallel decrease the equivalent resistance and therefore increase the absorbed current.
Even if a power supply or voltage regulator can withstand high inrush currents, is it capable of managing steady-state currents much higher than expected? If so then I'm learning something new.
Ah, logically I talk about absorbed current and power as if they were synonymous. Of course this is not the case, but I am only referring to the consequences of the Joule effect and at the same voltage, of course.
Then I thought, perhaps Lew knows very well the characteristics of the ESCs on the market and already knows that none of these can be put into "difficulty" by two brushed electric motors. So he makes a purely practical and pragmatic assessment rather than theoretical.
For example: "we know that the cheapest and poorest ESC makes up for 30A (I say randomly) and a motor normally, without impediments on the axis, absorbs around 4A (I say randomly), so I'm always calm because or one or two deaths makes no difference."
I repeat, mine are more questions than statements. Before assimilating I prefer to be sure that I have understood correctly.
Twin motors
Morning Alessandro.
Sorry for the delay but only just see your reply along with all the other valuable info given by others.
Lew give a brilliant input into the situation 👍 and I agree.
I have to be honest and say that I am unsure concerning the internal workings re the two way and single ESC other than stating the obvious.
I personally wouldn’t use a Y lead.
With two motors on a single ESC the problem will be if one motor goes wrong the other could be uncontrollable.
I have and still do run two of one ESC in one boat without a hitch🤞🤞
Not sure if this makes sense.
I like you am always keen to learn from those who know more than me.
Regards
Bill.
Sorry for the delay but only just see your reply along with all the other valuable info given by others.
Lew give a brilliant input into the situation 👍 and I agree.
I have to be honest and say that I am unsure concerning the internal workings re the two way and single ESC other than stating the obvious.
I personally wouldn’t use a Y lead.
With two motors on a single ESC the problem will be if one motor goes wrong the other could be uncontrollable.
I have and still do run two of one ESC in one boat without a hitch🤞🤞
Not sure if this makes sense.
I like you am always keen to learn from those who know more than me.
Regards
Bill.
Never give up.It will come right in the end.
Twin motors
Whether using 2 or only one motor (or even more) you don't look at "maximum power". You might look at stall current. This would be using makimum power but the motor can drain considerable more current if it was stalled for ny reason (weeds, etc.).
For instance, using a (common) RS-540SG-6530 motor (one):
No load - 1.3 amps
Max eff @16,000 RPM - 6.45 amps
Stall - 32 amps🔥
Good news is we don't usually need to consider the stall current if the esc can shut off under overload conditions. But, some consideration should be given to at least the fact that a motor's current will be higher under loads (propeller size, shaft friction, etc.).
If cost is a consideration, two esc's might be more effective than one larger one. For example:
QUICRUN WP 880 Dual Brushed ESC - Cont.80A, Peak 400A (35-50 $US)
QUICRUN 1060 BRUSHED ESC - Cont 60A, Peak 360A (22-31 $US)
Just "food for thought..."
Lew🚤
Florida, USA
For instance, using a (common) RS-540SG-6530 motor (one):
No load - 1.3 amps
Max eff @16,000 RPM - 6.45 amps
Stall - 32 amps🔥
Good news is we don't usually need to consider the stall current if the esc can shut off under overload conditions. But, some consideration should be given to at least the fact that a motor's current will be higher under loads (propeller size, shaft friction, etc.).
If cost is a consideration, two esc's might be more effective than one larger one. For example:
QUICRUN WP 880 Dual Brushed ESC - Cont.80A, Peak 400A (35-50 $US)
QUICRUN 1060 BRUSHED ESC - Cont 60A, Peak 360A (22-31 $US)
Just "food for thought..."
Lew🚤
Florida, USA
https://www.RCFlorida.org/lmb
Twin motors
Hi PhilH. I get it, and you reminded me of something.
In the question to Bill, I forgot to point out that, if you use a single ESC for two motors, you need to pay attention to the powers involved and therefore the currents absorbed by the motors at maximum power.
What I say is certainly obvious.
Better to repeat it for newbies, certainly not for you.
An ESC that is good for one engine does not necessarily mean it is correctly sized for two engines.
The electrical characteristics must be checked.
The ESC could be damaged.
Sorry if I said wrong things or banalities.
In the question to Bill, I forgot to point out that, if you use a single ESC for two motors, you need to pay attention to the powers involved and therefore the currents absorbed by the motors at maximum power.
What I say is certainly obvious.
Better to repeat it for newbies, certainly not for you.
An ESC that is good for one engine does not necessarily mean it is correctly sized for two engines.
The electrical characteristics must be checked.
The ESC could be damaged.
Sorry if I said wrong things or banalities.
Liked by Doogle and pressonreguardless
Twin motors
Hi i have done that before I new there was a different way to do it I had one esc running two motors by joining to cables together for each motor they where Johnson 450 brushed motors hope this is useful 👍
Liked by Doogle and AlessandroSPQR
Twin motors
Happy to have been of some help ☺️, that's what I like about this site, such a wealth of information and folks happy to share 👍
Liked by AlessandroSPQR
Twin motors
Hi Bill, cheers to Doogle, LewZ and all ship modelers.
Reading your posts and seeing your images is truly informative.
You did a great job putting up a video too, they often explain better than many words.
I read your comments with interest.
Thanks to PhilH who opened this discussion, so it gives me the opportunity to learn a lot.
I wanted to ask you a question Bill, sorry if this seems like a stupid question.
Do ESCs with dual output power supply have more special electronics than ESCs with only two output cables, or do they simply put the positive and negative outputs in parallel, obtaining four cables instead of two?
In other words, if I took a normal ESC, with only one positive cable and only one negative output cable, and made a final Y connection, thus obtaining two positive and two negative, would it be the same device or not?
Logically comparing them with all other electrical characteristics being equal (voltage, power, initial current etc. etc.) and respecting the sections of the cables.
Reading your posts and seeing your images is truly informative.
You did a great job putting up a video too, they often explain better than many words.
I read your comments with interest.
Thanks to PhilH who opened this discussion, so it gives me the opportunity to learn a lot.
I wanted to ask you a question Bill, sorry if this seems like a stupid question.
Do ESCs with dual output power supply have more special electronics than ESCs with only two output cables, or do they simply put the positive and negative outputs in parallel, obtaining four cables instead of two?
In other words, if I took a normal ESC, with only one positive cable and only one negative output cable, and made a final Y connection, thus obtaining two positive and two negative, would it be the same device or not?
Logically comparing them with all other electrical characteristics being equal (voltage, power, initial current etc. etc.) and respecting the sections of the cables.
Twin motors
I have same one in my smit nederland and run a 2s lipo on it with no issues
Liked by chugalone100 and AlessandroSPQR
Twin motors
Hi back again just watched video and I think you have the same as me and have same problem with brake ,I struggle with that that's why I changed and asked the question and have settled for hobbywing as you can program it how you want it.😁😎
Twin motors
Hi scratchbuilder that looks the same as one I bought from ebay trouble the one I had was the brake in middle every time I went from forward to try to get in reverse it would not go and had to mess about to do it I now have hobbywing and just waiting for programmer then I can take the brake out thanks for all replies👍
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Twin motors
That's very helpful, filed this away for potential future projects
Liked by AlessandroSPQR and Scratchbuilder
Twin motors
PhilH.
Going on from the previous discussions re twin motors.
I ordered the attached the other day out of curiosity and it’s a little cracker.
Unbranded I know but at £17.00 inc postage from Amazon it’s a bargain.
It came today.
I quickly set it up and it’s works well,but now need fine tuning.
See pictures,but excuse the wiring and different motors I’m not normally this untidy,but for demo only.
Hope it helps.
Regards
Bill.
Going on from the previous discussions re twin motors.
I ordered the attached the other day out of curiosity and it’s a little cracker.
Unbranded I know but at £17.00 inc postage from Amazon it’s a bargain.
It came today.
I quickly set it up and it’s works well,but now need fine tuning.
See pictures,but excuse the wiring and different motors I’m not normally this untidy,but for demo only.
Hope it helps.
Regards
Bill.
Never give up.It will come right in the end.
Liked by AlessandroSPQR and TerryH and
Twin motors
Help !!! i keep getting post reply coming up I can't even answer the question of the day
Twin motors
I guess the basic answer to your question is "how many channels does your radio have?" I can understand the problem if you have a two channel radio or if you are using other channels for something else.
As stated previously two esc's is better for two motor control than one esc (if you have an extra channel for the second esc). Although it is made in China, the Hobbywing 1060 brushed is a great value (22-25 US$) and works really well. I have at least 8 of them.
I looked at that costly "P94" and was not impressed for what it does. 20A is not sufficient for most larger model boats.
Most don't need to get involved with mixing if you use a transmitter with two sticks and use two esc's. KISMIF.
Tip: Use left and right hand props. This will keep the boat from "walking" and if using brushed motors they will run in the same direction (more efficient)
Lew
Florida, USA
As stated previously two esc's is better for two motor control than one esc (if you have an extra channel for the second esc). Although it is made in China, the Hobbywing 1060 brushed is a great value (22-25 US$) and works really well. I have at least 8 of them.
I looked at that costly "P94" and was not impressed for what it does. 20A is not sufficient for most larger model boats.
Most don't need to get involved with mixing if you use a transmitter with two sticks and use two esc's. KISMIF.
Tip: Use left and right hand props. This will keep the boat from "walking" and if using brushed motors they will run in the same direction (more efficient)
Lew
Florida, USA
https://www.RCFlorida.org/lmb
Liked by AlessandroSPQR and RodC and
Twin motors
S, joining both motors to the one set of ESC leads will work, but always double check the motors combined Amperage drar, not to exceed the Fuse rating or ESC capacity.
Liked by Doogle and RNinMunich
Twin motors
I have a couple of these, just fitted one into my BYMS, works as it should.
https://www.ebay.co.uk/itm/194316283096
https://www.ebay.co.uk/itm/194316283096
Liked by Doogle
Twin motors
On my PT boat, I used a Y lead from ebay. Joins my 2 esc's together to run both motors
Liked by AlessandroSPQR and Scratchbuilder
Twin motors
You could look at this previous thread below it may help. I use a dual throttle upgrade for a flysky I6 to control two motors it is absolutely fantastic https://model-boats.com/forum/95058
Liked by Len1 and Scratchbuilder
Twin motors
PhilH.
Yes you can but not recommended.
I have in the past.I suggest a two way ESC.
Please see attached photo.
Bill
Yes you can but not recommended.
I have in the past.I suggest a two way ESC.
Please see attached photo.
Bill
Never give up.It will come right in the end.
Twin motors
I've just bought a P94 from Component Shop for my Deans LCM 6, a bit pricey but made in UK so help is a phonecall away...
https://www.componentshop.co.uk/p94-dual-esc-and-mixer-2-x-20-amps.html.html
https://www.componentshop.co.uk/p94-dual-esc-and-mixer-2-x-20-amps.html.html
If it don't fit, use a hammer to make it fit....
Liked by Scratchbuilder
Twin motors
Small esc n a Y cable going to the receiver. Or if you have extra channels n mixing you can set the motors to steer as well
In my pt109 lindburg it has a gear set that drives two props n uses one motor. I have seen that gear bix on eBay at times.
In my pt109 lindburg it has a gear set that drives two props n uses one motor. I have seen that gear bix on eBay at times.
Howard hager
Liked by AlessandroSPQR
Twin motors
You can join them up but if you want to get a new esc just go to ebay and type in 2 way esc
Liked by AlessandroSPQR and Scratchbuilder
Twin motors
Hi how would you go about controlling two motors ,they are brushed motors if you use one esc can you join both motor cables together to run the two motors or where can you get esc with two sets of cables .
Thanks for all your help.
Thanks for all your help.
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