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D class Dog Boat
20 Posts · 5 Followers · 1 Photo · 12 Likes
Began 1 year ago by
Warrant Officer
United KingdomFollow This Thread
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Latest Post 1 year ago by
Captain
Australia( Newest Posts Shown First )
📝 D class Dog Boat
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Country: 🇦🇺 Australia
Online: 1 day ago
Online: 1 day ago
Great result Jon.
Cheers,
Stephen.
Cheers,
Stephen.
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Muskrat
📝 D class Dog Boat
43 Views · 1 Like
Country: 🇨🇦 Canada
Online: 9 hours ago
Online: 9 hours ago
Think once it using the water and under load it will probably quieten further
Good luck
Good luck
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Muskrat
📝 D class Dog Boat
39 Views · 1 Like
Country: 🇬🇧 United Kingdom
Online: 4 months ago
Online: 4 months ago
Hi Dave, I have had a play with the wiring this afternoon I wired the motors in series and bravo 80% quieter I can put up with that. I should think with the decking fitted it will be really quiet.
Cheers Dave much appreciated Thank you. 👍
Cheers Dave much appreciated Thank you. 👍
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stevedownunder
j a Easter.
Commander📝 D class Dog Boat
42 Views · 1 Like
Country: 🇬🇧 United Kingdom
Online: 5 minutes ago
Online: 5 minutes ago
Hi Jon
Hope you can find an acceptable solution. If you have a 12v battery you could try that and see if the higher voltage reduces the whine.
dave976
Hope you can find an acceptable solution. If you have a 12v battery you could try that and see if the higher voltage reduces the whine.
dave976
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Muskrat
📝 D class Dog Boat
48 Views
Country: 🇬🇧 United Kingdom
Online: 4 months ago
Online: 4 months ago
Hi Dave I have a new 400 motor at my Dads garage i will that a go and i will give a go wiring at wiring the motors in series. As you say having the deck on will help a lot to keep the noise down, i will try both ideas and let you know either way.
Thanks again for your help Jon.
Thanks again for your help Jon.
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j a Easter.
📝 D class Dog Boat
50 Views · 1 Like
Country: 🇬🇧 United Kingdom
Online: 5 minutes ago
Online: 5 minutes ago
Ok. Try connecting the motors in series and see if there is any difference. Do you have another motor you can connect to see if the noise is still present? I have looked on line and seen other posts with the same or similar problems. I suspect the motors are causing the noise but it will do no harm and may not be noticeable on the lake and is reported to reduce at higher speeds, which I suspect is how you will be running your model. Mounting the motors on rubber mounts is said to reduce the resonance but I suspect you will always have some noise. I would ignore as far as possible and with the deck on the noise may not be so noticeable.
Dave976
Dave976
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Muskrat
📝 D class Dog Boat
49 Views
Country: 🇬🇧 United Kingdom
Online: 4 months ago
Online: 4 months ago
Hi, It is a little quieter with one ESC disconnected, disconnecting one motor makes no difference and of course with both there is no noise. i did the same with the other one and no difference on the other ESC and motors.
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j a Easter.
📝 D class Dog Boat
51 Views
Country: 🇬🇧 United Kingdom
Online: 5 minutes ago
Online: 5 minutes ago
Ok so I think we need to start a process of elimination. Disconnect one esc and see if the noise is greater or smaller. Then disconnect one of the motors and see if any change. Do the same with the other Esc and its motors. Please advise what results you get so we can progress to the next step
Dave976
Dave976
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📝 D class Dog Boat
50 Views
Country: 🇬🇧 United Kingdom
Online: 4 months ago
Online: 4 months ago
Hi Dave, I am using four Deans marine Kestrel five Motors 4.8 to 12 volts, Two Viper marine 20 ESC controllers, I have wired two motors joined together in parallel to the one ESC. I have also used a Y lead to join the two.
Cheers Jon
Cheers Jon
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j a Easter.
📝 D class Dog Boat
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Country: 🇬🇧 United Kingdom
Online: 5 minutes ago
Online: 5 minutes ago
Hi Jon
The sound is caused by the frequency used by the ESCs. Used to be a problem several years ago with some ESCs. How have you connected each motor to its ESC - are they in series or parallel? The number of windings will affect the frequency (noise) produced so changing from say series to parallel may reduced the noise level. It would help to know the make and size of the motors and ESCs.
dave976
The sound is caused by the frequency used by the ESCs. Used to be a problem several years ago with some ESCs. How have you connected each motor to its ESC - are they in series or parallel? The number of windings will affect the frequency (noise) produced so changing from say series to parallel may reduced the noise level. It would help to know the make and size of the motors and ESCs.
dave976
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