KDS 40 Amp brushless ESC

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KDS 40 Amp brushless ESC

by xXHelicopterXx » Sat Dec 13, 2008 3:45 am

Would this be a good ESC for the current stock belt cp? (specs are below) :shock:

- Safe Start Up (wont start until your throttle is at 0)
- Low Voltage Protection
- Over voltage protection
- Overheat protection
- Lipo or NiMH/NiCD batteries
- 3 Startup modes (Soft Start)\
- 3 timing modes

Rating current:40A
Continuance current:40A
Max / burst current:50A

A great ESC, rated for standard 40amps! Burst to 50 amps! Comes with manual. Fully programable for soft start/fast start etc via "beep codes". Very easy to setup and perfect for your T-Rex or other 450 sized RC Helicopter."

Another question, would the smallest slightest bend in the main shaft cause the esc to get really hot and cut out/overheating?

Thanks!! :D
T-Rex 150

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by andyg » Sat Dec 13, 2008 8:26 am

I,m no spec expert but 'Yes' sounds like the Esc will do the job not only for a stock CP but also when you,ve upgraded in the future for better motors , batts etc.
As for the mainshaft , i suppose it will have a very small effect on the esc heating up.
But but you are not alone , as it appears most of the stock mainshafts come 'ready bent' and they fly all the same.
ps, get yourself a S/Steel mainshaft from(pm sent) cheap,straight, job done. :wink:

Hkh 450- running with sonix 30a esc, 300hdx motor, G401b gyro, Zippy 2200s .
HKH 450_no2 (bought for spares)
Belt cp_ modded , on the shelf at minute, nicked electrics for hkh. (Will get back in the air one day soon.

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by dondecap » Sat Dec 13, 2008 10:20 am

hi xXHelicopterXx
the heating of you esc is common with the esky one, needs at least a seperate 'ubec' .
and make sure your 'drive train' is very free, should spin at least once or more when you spin the rotor by hand, --tight gear mesh, too big a pinion, tight belt, and bad bearings will all make motor work harder and 'pull' more amps .
if above are ok then the new esc should be ok.
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by c5 » Sat Dec 13, 2008 12:14 pm

Do you not also get vibrations with your bent mainshaft?


Always buy the best Helicopter you can afford to crash!

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