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How Hot is Hot? - 12/29/2004 5:18 PM   
dwi116


 

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From: New York, NY,
Status: offline 		Looking for that eflite expert with a simple question. These days you can buy a laser temp guage for like $30 and check temps to the 1/10 degree. Gas engines should run around 250 to 270 degrees, how about electric? 110, 120, 150? What is hot enough to worry about? Brushless motors are more effeicent and run cooler, can they also take more heat before the danger zone? After about 4 minutes my brushed Piccolo is running 120 degrees, and if I put my finger on it that feels about like the limit of a "safe" zone. Anybody know the answer?

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RE: How Hot is Hot? - 12/29/2004 5:50 PM   
Leety



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Status: offline 		if you read the manual, it should say.

not sure about the temp on eflite motors though.


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RE: How Hot is Hot? - 12/29/2004 8:47 PM   
Henke Torphammar



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From: Ljungby, SWEDEN
Status: offline 		Hackers can be 230 on the outside

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RE: How Hot is Hot? - 12/30/2004 4:34 PM   
Matt Kirsch



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From: Spencerport, NY, USA
Status: offline 		I always say that if it's hot enough to make you uncomfortable about it, it's too hot. It's a subjective thing, but unless you're totally out of touch with reality, your natural instincts will kick in and tell you that the motor is too hot long before you get to any danger zone. There really isn't any one magic number one can put on paper and say, "This is too hot!"

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RE: How Hot is Hot? - 12/31/2004 7:22 AM   
rmac714



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From: Smyrna, GA, USA
Status: offline 		mfg specs will specify safe op temp. go to pet store and buy a $ 1 flexible tank therm. yu can wrap it snug around the motor and get a suprisingly accurate temp in both F and C.

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RE: How Hot is Hot? - 12/31/2004 6:14 PM   
Matt Kirsch



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Status: offline 		Manufacturers don't always specify temperature. In fact, I've rarely seen a temperature spec.

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RE: How Hot is Hot? - 12/31/2004 7:11 PM   
smokingcrater


 

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quote:

mfg specs will specify safe op temp. go to pet store and buy a $ 1 flexible tank therm. yu can wrap it snug around the motor and get a suprisingly accurate temp in both F and C.


um, i haven't EVER seen one of those that will go above 100 F, lots won't go that high even. (I use quite a few of them, for my aquarium tanks and also fermenters for home brew....)

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RE: How Hot is Hot? - 12/31/2004 11:04 PM   
Matt Kirsch



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Status: offline 		I was wondering about that... 212F is where water boils. We cookin' lobsters in the aquarium?

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RE: How Hot is Hot? - 1/1/2005 3:20 AM   
jooNorway


 

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From: Naersnes, NORWAY
Status: offline 		A major problem is the very unusual "F"-scale......!
Thought that someone here should know about this, but since no-one have told you; there is a max temp where the magnets in your expensive brushless just begin to weaken or even destroy! And this of course depends on the quality of the magnets... Henke did mention a temp for the Hackers, and he knows a lot I have discovered on his homepage The common-most used motors will be destroyed at about 110"C (Celsius), but this is a number varying form 90-150"C depending on as I said; the quality of the magnets.

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RE: How Hot is Hot? - 1/1/2005 3:34 AM   
GotCoffee66



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From: Twentynine Palms, CA, USA
Status: offline 		the Kontronik Fun 480-33 Brushless Motor can tolerate temps of 302 deg F

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