Model Boat Mayhem

Technical, Techniques, Hints, and Tips => DC Motors (Brushed) and Speed Controllers => Topic started by: kiwi96 on April 20, 2009, 06:38:38 am

Title: Is this suitable
Post by: kiwi96 on April 20, 2009, 06:38:38 am

Hi all.
Just found this motor. I was wondering if some motor GURU here  could let me know if it suitable to poswer my latest model. The model is th Richelieu battleship in 1/96. Approx 2.4m long and est weight of 45 to 50 kg. Will install 4x of these if suitable and power frrom 2x 12v7amphr batteries.
http://www.jaycar.co.nz/productView.asp?ID=YG2738&keywords=12v+dc+motor&form=KEYWORD
Look up spec.pdf to see all about it.
All comments much appreciated.
Cheers, Adrian.

Title: Re: Is this suitable
Post by: Marks Model Bits on April 20, 2009, 07:15:28 am

In one word........ No. the motor is only revving at 160 rpm, at that speed your model won't move much, if at all.....The MMB 900 motors I sell will work fine on 12 volts in that size of model.

Mark.

Title: Re: Is this suitable
Post by: J.beazley on April 20, 2009, 09:46:52 am

My Richelieu has 4x Graupner Speed 500E motors in her.
I havent had her in the water to test how they perform YET but bench testing showed they should be good enough to push her along at a decent pace.

If they dont work for me then i shall be on the phone to Mark to replace them for his much rated MMB 900 motors.

Jay

Title: Re: Is this suitable
Post by: stallspeed on April 20, 2009, 02:33:25 pm

The motors are fine but the gearbox reduction is too much.
Car window or the smaller blower moters will probably give you the correct rpm and torque.

Title: Re: Is this suitable
Post by: hopeitfloats on April 24, 2009, 09:56:20 am

note though that the motors jaycar sell are quite noisy. at least the couple i have are.