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Author Topic: traction  (Read 2136 times)

grace

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traction
« on: March 03, 2014, 06:04:42 pm »
hi, after bending everyones ear that will listen iv not been able to find any graupner 900.......there is another supplier of 900's but they arent as powerful.........iv got a 40" tug on its way and i want it silly powered..as much traction as possible...its probably going to end up on twin or tripple korts,60mm ish..what other motor options are there? iv got a mmm lady jan running a t12 motor and although its lovely in this model this motor choice is going to be far to tame for my planned traction tug......
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Netleyned

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Re: traction
« Reply #1 on: March 03, 2014, 06:14:41 pm »
Is the ( Mobile Marine Models ) T24 grunty enough?

Ned

http://www.mobilemarinemodels.com/acatalog/Motors.html
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nick_75au

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Re: traction
« Reply #2 on: March 06, 2014, 09:13:16 am »
Brush-less ;D


Opps wrong heading %)
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Hellboy Paul

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Re: traction
« Reply #3 on: March 06, 2014, 09:34:58 am »
Why not run this on 18v or 24v
 http://modelboatbits.com/shop/article_MBB-900M/900-HIGH-TORQUE-MOTOR.html?sessid=dgBizfrjte2eY2elaSP6hqWggrZzFdKrJjGSr9iBMb15dpmkdFuyIFaAZ0OaJDZj&shop_param=cid%3D86%26aid%3DMBB-900M%26


Or alternatively run a pair of 90mm props in korts. (In simple terms) power (or "traction") is not governed completely by RPM of the motor but how much water is shifted by the prop per revolution..




Paul.
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Tug-Kenny RIP

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Re: traction
« Reply #4 on: March 06, 2014, 10:23:54 am »

Paul's choice is the one to go for.  Both me and Stavros like these.

They pull a treat and are powerful.     %%    %%    %%

Ken

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grace

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Re: traction
« Reply #5 on: March 06, 2014, 11:53:58 am »
Quote from: Tug---Kenny on March 06, 2014, 10:23:54 am
Paul's choice is the one to go for.  Both me and Stavros like these.

They pull a treat and are powerful.     %%    %%    %%

Ken

iv been advised to go low rpm brushless out runner..so im hoping these are more powerful than the 900's  :D
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Martin (Admin)

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Re: traction
« Reply #6 on: March 06, 2014, 10:10:46 pm »

Sensorless Brushless motors don't like low revs so you may need a belt drive or gearbox...
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Stavros

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Re: traction
« Reply #7 on: March 06, 2014, 10:28:48 pm »
Not the ones I have reccomended to Grace Martin.....remeber the Happy Hunter the Main Motor is a Brushless and simply ticks along
 
Dave
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grace

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Re: traction
« Reply #8 on: March 06, 2014, 10:37:47 pm »
Quote from: Stavros on March 06, 2014, 10:28:48 pm
Not the ones I have reccomended to Grace Martin.....remeber the Happy Hunter the Main Motor is a Brushless and simply ticks along
 
Dave

they only had one motor in stock so i bought it along with a pair esc's so i may have to find another pair of motors yet.......
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