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Author Topic: esc motor compatibility  (Read 2079 times)

seathug

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esc motor compatibility
« on: September 13, 2014, 08:36:46 pm »

Direct MFA COMO Drive 500 Size Motor

This high quality motor comes with motor mount and noise suppression compacitors.
Specifications:
-1/8" (3.2mm) Driveshaft
-6-12 Volt Operation
-13,350 RPM @ 12 Volts
-1-3/8" Can Diameter
-2" Can Length


Tio Marine 15 Amp Electronic Speed Control


Forward and Reverse Marine ESC
NEW built-in failsafe to protect against complete loss of signal or when out of range (compatible with all manufacturers recivers)**INDUSTRY FIRST***
Absolute short circuit and motor overload protection

-15A Current limit
-100% Waterproof
-6-12Volt (Input voltage)
-Power Connection made with Tamiya Connector
-Motor Connection made with Bullet Connectors
NOT FOR USE WITH A BRUSHLESS MOTOR

will this two work together?
Using a 5000nihm nihm battery
Trying to get at least two hours of run time

Thanks
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cuppa

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Re: esc motor compatibility
« Reply #1 on: September 13, 2014, 11:41:39 pm »

Hi Sir


Depends on what the current draw of the motor is. Personally I wold go for a speed control that has a significantly higher rating than the max current the motor could potentially draw.
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seathug

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Re: esc motor compatibility
« Reply #2 on: September 14, 2014, 12:04:41 am »

Thanx

In that case maybe this is better for that motor

-30A Current limit
-100% Waterproof
-6-12Volt (Input voltage)
-Power Connection made with Tamiya Connector
-Motor Connection made with Bullet Connectors

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malcolmfrary

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Re: esc motor compatibility
« Reply #3 on: September 14, 2014, 07:19:46 am »

Both are compatible, run time is determined on the one hand by the capacity of the battery and on the other by how fast you drain it.  How fast it gets drained in turn is determined by the size of prop and how fast you try to spin it, or how fast the boat gets cruised.
Getting 2 hours out of 5000mAH means averaging a 2.5A draw.
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seathug

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Re: esc motor compatibility
« Reply #4 on: September 14, 2014, 07:57:19 am »

Thanx Malcolm
You explained it so well I finally understand how this things work together
Thank you
scale speed  is just fine with me its more relaxing just watching it at a scale speed
and just let it floating on the middle of the pond


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seathug

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Re: esc motor compatibility
« Reply #5 on: September 25, 2014, 10:29:19 am »

One more question
When should you use a geared motor?
Does the geared motor helps to rotate a big prop
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malcolmfrary

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Re: esc motor compatibility
« Reply #6 on: September 25, 2014, 10:48:02 am »

The general rule of thumb for brushed motors is that the can diameter should be a bit bigger than the prop diameter, and having more poles than blades works, too.  Gearing effectively increases the diameter of the can and the number of poles allowing a smaller motor that can deliver the required power to swing a bigger prop with both turning at their best speed. 
A bigger prop turning more slowly will shift the same amount of water, but not as far.  This is good when moving a displacement hull.  A small prop will move the water faster, which is what is wanted on a fast boat.  Smaller diameter motors tend to produce their power when revving faster, if the prop is good with that, fine, if not, either a bigger motor or gearing.
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