Motor Cooling

Motor Cooling

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21 October 2009 at 21:48 #23642
Tersane
Participant
@tersane
I am (slowly) building a 28″ 1/24th semi-scale patrol boat and wanting a bit of speed have got a Graupner Speed 600 Race motor. Will I need to water cool it, or will it be alright as is? Also, what prop would suit?
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21 October 2009 at 21:48 #5055
Tersane
Participant
@tersane
27 October 2009 at 07:24 #23723
Rick Devonshire
Participant
@rickdevonshire
I am currently building an MTB with two of these motors. Westbourne Models supplied them and have told me W/C may not be necessary however I have purchased to w.c coils which I may fit. These will require a water scoop pickup just behind each prop however these may be prone to picking up weed, a problem on our sailing water.

Many people now use small electric fans to force an airflow over the motors.

As to pops I was advised to purchase Graupner 2 bladed hydro props of about 36mm diameter.

Rick.
1 November 2009 at 16:25 #23795
Tersane
Participant
@tersane
Thanks for your input, most welcome. I shall be at the International Model Boat Show next week-end with my wallet and will do some purchasing.
26 February 2010 at 05:38 #25739
Haig
Participant
@haig
Tersane,

If you run the motor on 12 volts you will most probably need water cooling via a scoop as suggested above. You can now but readymade aluminium coils that fit the motor.

On my latest model I have made the cooling coils by getting the aluminium tube(5/32″), filling with salt, blocking the ends with tape and then rolling the tube around something with a slightly smaller diameter than the motor. You will then need to get the salt out. Light tapping and a little patience.

Regards

Haig
26 February 2010 at 05:40 #25740
Haig
Participant
@haig
Tersane,

If you run the motor on 12 volts you will most probably need water cooling via a scoop as suggested above. You can now but readymade aluminium coils that fit the motor.

On my latest model I have made the cooling coils by getting the aluminium tube(5/32″), filling with salt, blocking the ends with tape and then rolling the tube around something with a slightly smaller diameter than the motor. You will then need to get the salt out. Light tapping and a little patience.

Regards

Haig
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