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  Item found in the following categories;
> Speed Controllers (ESC) > All Speed Controllers (ESC)
> Speed Controllers (ESC) > HobbyKing ESC
> Speed Controllers (ESC) > 40 to 79 Amp
> Multi-Rotors & Parts > Speed Controller (ESC) > Hobbyking Blue Series


HobbyKing 40A BlueSeries Brushless Speed Controller

HobbyKing 40A BlueSeries Brushless Speed Controller

Its no “Mystery” where these ESCs are made, now they are available to you at HobbyKing prices.

Built with imported N-Channel mosFET's and an ultra fast Atmel MCU & heartbeat make this a high performance ESC with excellent sync capabilities. This ESC has a 5A SBEC for solid reliable servo power.
Programmable via an R/C controller.It allows you to program all functions to fit your specific needs, which makes it efficient and user friendly.
Extremely low internal resistance
Super smooth and accurate throttle linearity
Over heat and over-load protection
Auto shut down when signal is lost or radio interference becomes severe for more than 2 seconds
Supports high RPM motors
Power arming protection (prevents the motor from accidentally running when switched ON)
New Advanced programming software
Programming features:
Brake setting (we recommend using brake for only folding props applications)
Battery type(LiPo or NiCd/NiMh)
Low voltage cutoff setting
Factory default setup restore
Timing settings (to enhance ESC efficiency and smoothness)
Soft acceleration start ups (for delicate gearbox and helicopter applications)
Governor mode(for helicopter applications)
Motor rotation( clockwise\counterclockwise)
Switching frequency
Low voltage cutoff type (power reduction orirnmediate shutdown)
Factory default settings:
Brake:  off
Battery type Detect:  LiPo with Automatic Cell
Low voltage cutoff threshold:  Medium (3.0V/65%)
Timing setup:  Automatic
Soft Acceleration Start Up:  Medium
Governor mode :  OFF
Frequency :  8kHz
Low voltage cutoff type:  Reduce power

Cont. Current: 40A
Burst Current: 60A
Battery: 2-6 Cell Lipo / 5-18 Cell Ni-XX
SBEC: 5.5V/ 5A Output
Size: 52*25*10mm
Weight: 36g


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Weight: 49g
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Price  $21.37

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 Customer rated
Total of 175 discussions.
grat450  7 points - 9/18/2015
j'ai achete la carte H-King Air ESC Programming Card mais elle ne fonctionne pas avec ce controleur ... quelqu'un sait il laquelle convient ?
Dustin  3 points - 8/19/2015
Why does this come up as a part for the TZ4 1/28 RC Car :(
weezbad  262 points - 7/28/2015
These things wont work when flashed with simon k on NTM 25-30 1100kv. I flashed them with BLheli and they now work fine. the 50 amp ones dont flash either. now that i have them figured out i love them. they work quite well as they are pretty fast out of the box
ARMANDO  8 points - 6/23/2015
Hi guys, i got problems with this ESC, they are not saving the calibration after exit the Calib. mode. When they are inside the Calib. Mode they take perfectly the calibration and the motors run great, but when exit the mode and arm the APM they just runs like nothing happend. (Not Calibrated) I allready calibrate the 6 ESC independently and all at once, with APM and without APM My question is: is the APM capable to create this problems or is something else?...i really dont want to flash the firm to Simonk. Thanks guys
Engine  37 points - 6/13/2015
Can i program this ESC wuth mu Radio , as can i do with Blueseries 30A Speed Controler. Thanks
Customer Reviews
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Overall Rating
8 thumbs up!
Every motor I've tried with this ESC runs VERY hot. Also my battery time is shorter. You can to better in this price range.

6 comments. Reply..

Overall Rating
5 thumbs up!
Wow, I am glad I bought this when I did! This is a fantastic speed control. I hooked it up to my new HK 450MT project and have had no problems. I haven't gotten the chance to really load it up yet, but it runs cool in hovering (test flights).

I deducted one star because it comes with no instructions. While you can build the HK 450 with T-Rex instructions, I wouldn't attempt programming the ESC with them!

Thanks again, HK!

3 comments. Reply..

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Overall Rating
1 thumbs up!
-Still Did not test it
Great Quality..... Even shipping is Good. I m from India and I ordered about .983 Kg(Total) and i received it within 11 Dayz from the date of Shipping.....Thats Great... Thankx Hobby King.. :-)

2 comments. Reply..

Overall Rating
Like it?
Good quality ESC
weight is 39.1g with XT60 plug and 3mm bullet connectors
The servo wire is long (26cm)

2 comments. Reply..

Overall Rating
Like it?
Best ESC so far, will not use others for the time being. Very easy to program with the correct programming card.

2 comments. Reply.. here to see all reviews
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