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HobbyKing Donkey ST4010-820kv Brushless Motor

HobbyKing Donkey ST4010-820kv Brushless Motor

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$13.37
Rating:
Stock:
Weight:
245 g
SKU:
ST4010-820

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Product
Description

When pulling power matters and looks.. well.. just don't, then the HobbyKing Donkey ST4010 is the work horse for you. This tough-as-rawhide motor features a heavy duty mount, a huge 6mm shaft and self oiling bushings that just wont give up like some of the bearings in those little "Show Pony" motors.

Specs:
RPM/v: 820kv
Dimensions: 51 x 23mm
Shaft: 6.0mm
Voltage: 11.1~14.8V
Weight: 194g
No-load current: 2.8a @ 11.1v
Max Current: 60A
Max Watts: 680W
Mounting Holes: 65mm

Prop Data:
12x8 - 11.1v - 39a - 1750g Thrust
11x5 - 14.8v - 44a - 2250g Thrust
10x5 - 14.8v - 30a - 1850g Thrust

Product
Specifications

Additional Information

  • SKU:
    ST4010-820
  • Brand:
    HobbyKing
  • Weight(g)
    245.00
  • Length
    80.00
  • Width:
    55.00
  • Height:
    63.00
  • Kv(rpm/v)
    820.00
  • Max Currents (A)
    60.00
  • Power (W):
    680.00
  • Length B (mm):
    30.00
  • Can Length D(mm)
    24.00
  • Max Voltage(V)
    15.00
  • Shaft A(mm):
    6.00
  • Unit Weight (g):
    194
  • Diameter C(mm)
    51.00
  • Total Length E(mm)
    66.00
  • Resistance (mh):
    0.00
Community
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I got one for powering my futur Tiger Moth 1400mm laser kit which would weigh 2,5 to 2,8 kg. I will have do take care of the thrust lever ! Read the following:
On the test bench with the HK LightElectric wood prop 13x6", I got peaks of 3kg and then constant 2,8kg of thrust @ 750 to 700W and ~ 52A.
For a 15€ setup, I guess even the devil cannot do better...
Next test onboard, when the Tiger will be built...
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This motor is powerful. I used it to test a 2.7kg 60in Yak-55, the 2.3kg HK Estrella, and I had a magnet failure yesterday testing props on a 2.6kg HK Space Walker, easy fix, I'll buy another one. The HK Estrella flys so well with this motor, that I left one in there, and never bothered to get a fancy motor for it. Just get one, (or two) !
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I bought this motor as a backup in case my 5055 was held up in transport, just so I could test fly my new 60" Yak 55, but I wasn't sure it would pull it into the air. I fitted it with a 15"x8" prop and it pulled the 2.7kg Yak up unlimited vertical ! I just wonder what this motor will do on my 42" Pitts Python :)
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Very solid build/construction of this motor, I've bought it for a 1.4mtr plane, time will tell it's durability, I will re-report on this motor after a few months of flying with it.
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for 13 bucks you cannot beat it over 10 pounds of thrust on a 4 cell and a 14 inch prop..and around 800 watts. only have a few hours on it but so far so good ..defiantly not top shelf quality but for the price its great for a heavy lifter
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Excellent motor I am now running two, both drive 13x6.5 APC props using a 60A SS Esc.

One is pulling a scratch 4.7lb, 1/4 scale Vans RV-9 around with great authority, and 12 min flight times.

Quiet, pwerfull and robust. Perfect HK !
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Perfekter Motor fr den Robbe AirTrainer 140.

Baugleich mit dem Orginal der allerdings 39,- kostet.
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I am not sure these bushes are self oiling. My motor seizes up every now and then. I then pull it apart and oil it and it works again for a while.
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Heres the thing, i am running these on a 4s with a 11" slow fly prop on an octo, these motors heat up big time, hot enough that some of high heat glue from my hot glue gun melted.
And i was at 50pcnt throttle most of the time, not goot at all.
Thos cheap bell type brushless outrunners that are blue and say 3s max, i rand those on a 4s with 12" props, they get slightly warm, are half the weight, half the size and cheaper, they also give the same thrust pretty much, this donkey motors are just rubbish
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800 watts on 4s no problem, but bushings wear fairly quickly, still usable but slight vibrations due to wear.
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