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> Helicopters & Parts > Helicopter Kits > Electric Helicopter Kits


HK-500CMT 3D Electric Helicopter Kit (incl. GF blades and extras)

HK-500CMT 3D Electric Helicopter Kit (incl. GF blades and extras)
HK-500CMT 3D Electric Helicopter Kit (incl. GF blades and extras)

The highest SPEC HK Heli, the CMT is all metal, all carbon and allll good!
You can't upgrade this bad boy, it's already upgraded to the maximum!
Much bigger than it's smaller 450 brother, the 500CMT is an exciting helicopter to see in action and even more exciting to fly. It's 2024 alloy head ensures hard core 3D pilots wont be dissapointed in the performance and the beautifully painted cowl and Titanium anodized components make this a visually stunning helicopter with performance to back it up!
Carbon Fiber main frame, CF horizontal & vertical fins also full metal tail unit makes this heli perfect for Pro's!
All parts are 100% compatible with T-Rex 500
Included are main and tail blades & Carbon Fiber boom supports.
Click here for parts and upgrades.
We guarantee you wont find a better priced heli of this quality anywhere!
Light weight design provides awesome flight performance and extreme 3D capability.
Rotor head/tail with thrust bearings.
Direct-to-swash CCPM linkage.
Center of gravity of battery tray designed close to the rotor head.
High efficiency belt driven metal tail.
Fully driven tail auto rotation system.
Tail servo boom mount.
Carbon Fibre Main Frame and boom support rods.

Length: 840mm
Height: 310mm
Main rotor diameter: 970mm
Tail rotor diameter: 200mm
Motor pinion gear: 13T
Main drive gear: 162T
Tail drive gear: 31T
Drive gear ratio: 1:12.46:4.68
Weight(without power system): 1370g
Flying weight: Approx 1700g
Required items.
Brushless Outrunner Motor
Servos : See linked items below.
Radio Gear : Gyro/Rx
ESC : 80A or greater.
Battery: 2 x 2200mAh 3S 20C or greater.


Shipped from:
International Warehouse



  • Turnigy nano-tech 2200mah 6S 45~90C LiPoly Battery

    Combo Price: $36.85   IN STOCK
    Add to Cart

  • Turnigy nano-tech 2600mah 6S 45~90C LiPoly Battery

    Combo Price: $48.53   IN STOCK
    Add to Cart

  • Turnigy nano-tech 2200mah 6S 65~130C LiPoly Battery

    Combo Price: $47.15   IN STOCK
    Add to Cart

  • RJX FS-0391THV Metal Gear Digital Tail Servo Ultra High Speed 10.6kg / 0.03sec / 50g

    Combo Price: $72.95   IN STOCK
    Add to Cart

  • Turnigy RotorStar Dual Power 15A Voltage Regulator

    Combo Price: $54.08   IN STOCK
    Add to Cart

  • RJX Vector Green 70mm Carbon Fiber Tail Blades

    Combo Price: $12.95   IN STOCK
    Add to Cart

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Estimated factory delivery date;
 Customer rated
Total of 72 discussions.
Dennis  10 points - 12/27/2015
HK500CMT belt drive tail can anyone give me the head linkage link lengths ??? Or tell me exactly which trex this is a clone of.
Gwendolyn  4 points - 12/12/2015
J'ai bien reç*u le HK500 CMT de l'entrepô*t europé*en. Il est en excellent é*tat, il n'a fallu que 5 jours entre la commande et la ré*ception. Les piè*ces sont trè*s bien usiné*es. Aucune malfaç*ons sur le kit. Je changerais uniquement les vis du AC pour le vol. Bien penser à* huiler les roulements et mettre du frein filet au vis. J'en suis trè*s content, 5/5.
Mark  1 points - 9/9/2014
i would have thought that if the batteries are in series then you would have 22.2 volts, not 11.1 volts
 John Banion 168 points
You are correct!
 John Banion 168 points
Series adds voltage/S#,capacity mAh stays the same. Parallel adds capacity, voltage/S# stays the same.
pd1949  2 points - 6/23/2014
hi can anyone help. I built this heli with SK3 helidrive motor T500-1600kv Using 2 x 2200ma batteries in parallel the heli wont lift off. Do I need to have these in series config. and will i need to reset ESC? Thanks for any help
 Klas 8 points
You need to have them in series config. Now you have 11,1v instead of 22,2v if you use 3s batteries.
 pd1949 2 points
Thanks. I thought that was the problem. Just needed another opinion.
 Mark 1 points
i would have thought that if the batteries are in series then you would have 22.2 volts, not 11.1 volts
henri  1 points - 4/26/2014
I am planning tot buy this heli i am looking for tips about the gyro andere radio andere all off the other things tot build this heli
 Basil 89 points
The Mems Gyro they sell here for $10 US is a good one I am using it with no problems however it took two of these kits and a full Align head to get one working helicopter. Bad bearings main gear and many other unusable parts came in both kits. The torque rod and gears are bad I had to go with all Align to the tail to work right. The original HK head flew apart and it crashed even after reworking with locktite. The cheap servos they sold me also stated going bad one after the other only after 4 flights.
Customer Reviews
Overall Rating
3 thumbs up!
Kit is of decent quality compared to the price. Make sure you take apart the main head and tail and apply thread lock as there was hardly any thread lock on the metal parts. Also make sure you apply grease on the main and tail thrust bearings as there was not a single drop of grease on them and they will fail only after a few flights due to friction. I replaced the following parts with Align parts Main,tail,feathering shaft,tail belt.

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Overall Rating
1 thumbs up!
Kit muito bem embalado, e muito bem construido, ainda nao montei, mas a qualidade das peas parecem otimas

2 comments. Reply..

Overall Rating
1 thumbs up!
Got mine last week, all parts from good quality, but check all screws and add threadlock, if this is not done (like mine). Yesterday the heli was airborne, I am glad, super performance, verry exact in flight, best you can get for this price!

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Overall Rating
birmingham TONY UK
1 thumbs up!
yep! i got one .. its ok really, but forgett the carbon boom! its very flexible and causes the tail to vibrate. on first flight the tail box unscrewed it self, dropping the tail fin, no locktight on the tail so checked head, little to none either ! dry thrust bearings head & tail, screws are cheap and snap if you give em some ! canopy is poor, still some plastics that need upgrading, customs had me for 15 duty but overall ok for the money av fun

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Overall Rating
1 thumbs up!
Just recieved my 3rd 500 kit to use as spares. When are HK going to get the lenght of the boom and the tail push rod correct. I bought first kit with this problem in December 2010!! 4 months latter same thing. Cutting down the boom is straight forward enough but the push rod being to long is a pain, where do you get correct lengh pushrods?? Great kit otherwise, I've had no problem with tail rotors or anything else. Would give 5 stars if not for boom and push rod issue.

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