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> Helicopters & Parts > Helicopter Kits > Electric Helicopter Kits


HK-550GT 3D Belt-Drive Electric Helicopter Kit

HK-550GT 3D Belt-Drive Electric Helicopter Kit
HK-550GT 3D Belt-Drive Electric Helicopter Kit

Finally, a 550 class helicopter kit that won't break the bank! Modeled on the famous and proven T-Rex 550, the HK550GT will push your 3D skills to their limits.

This 550 size helicopter offers an excellent power-to-weight ratio that makes for stellar 3D performance. It utilizes the same power system as a 600/.50 size electric heli, but is lighter and spinning smaller blades, thus offering much higher performance and efficiency.

With its black anodized CNC alloy head & tail unit and beautifully finished carbon fiber frame, the HK550GT is as nice to look at as it is to fly. This kit has just about all the alloy upgrade parts you could want already installed such as battery mount plate, tail servo mount, tail pushrod guides, anti-rotation bracket base and main bearing blocks. There are very few plastic parts anywhere on this heli! 

The HK550GT uses high quality tail bearings and tight tolerances to ensure no slop in the tail assembly and locked-in tail performance for the most extreme of 3D flying.

This heli comes 90% pre-assembled so you can be in the air in no time. Just complete the final assembly,  add your favorite main blades, install your own electronics and your ready to fly!

• Black anodized CNC alloy head & tail unit.
• High-strength alloy main bearing blocks.
• Alloy battery mounting plate.
• Alloy tail servo mount.
• Beautifully finished carbon fiber main frames.
• High quality tail bearings and tight tolerances to ensure no slop in the tail assembly.
• Excellent power-to-weight ratio.
• Compatible with T-Rex 550 helicopter.
• 90% pre-assembled.

Length: 1042mm
Height: 374mm
Main Rotor Diameter: 1188mm
Tail Rotor Diameter: 254mm
Motor Drive Gear: 16T
Main Drive Gear: 170T
Autorotation Tail Drive Gear: 180T
Tail Drive Gear: 40T
Drive Gear Ratio: 1:10.62:4.5
Weight (w/o electronics/blades): 1350g

HK550GT Belt-Drive Helicopter Kit
Tail Blades
All Necessary Hardware

Required items:
6CH Transmitter/Receiver with Helicopter Programming
Lipoly Battery (4000~5000mAh 6S)
520~550mm Main Blades
Servos (3 x cyclic, 1 x tail)
Brushless Outrunner Motor

PRODUCT ID: 155000031

Weight: 2317g
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Price  $121.44

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Further discounts available for registered & logged-in customers.
 Customer rated
Total of 40 discussions.
Robinsson  22 points - 10/18/2015
What servo size to fit on the HK 550? Roger
 pdooley 74 points
standard size servos. usually 40x20mm
Robert  2 points - 9/3/2015
Has anyone had issues with pushing the main head shaft through the oneway bearing sleeve? Seems to be a tight fit.
 Robert 2 points
Just FYI, it was machined wrong. Used some emery cloth on it and now the main shaft fits in the oneway bearing sleeve. Guess it is just hit or miss when buying a kit. All that matters is it works now, in case anyone else runs into the same issue. I used 180 grit emery cloth and spun it around until it fit smoothly.
Josh  5 points - 8/6/2015
Where does one by the flybar for this?
 John Banion 161 points
Doesn't look like HK is stocking one at the moment. Amazon and Ebay have them. Its the same as the Align so just search "550 flybar".
Yesyns  138 points - 5/8/2015
 Yesyns 138 points
 Yesyns 138 points
The canopy is also one of the best design but do not drop it on a hard surface. It is fragile!
Yesyns  138 points - 2/24/2015
Most of the screw heads are using 2.5mm size hex wrench. Better use heavy-duty tool type, otherwise the hex hole become loosen and damaged.. might bring you more harder job to finish your heli buildup.
 Yesyns 138 points
 Yesyns 138 points
You fogot to put on the tail push-pull rod? Dont still have time. Just remove the tail rotor assymbly then push-in the rings holding the rod onto the tailboom... target=_blank>hk550 tail
 Yesyns 138 points
Hk servo BL89601 is a bit longer when fitted to aileron and pit slots. Need to add spacer such as washers or something similar. target=_blank>hkservoBL89601
 Yesyns 138 points
Just add 4mm thick spacer. target=_blank>servo spacer
 Yesyns 138 points
Finish buildup but I replaced all cyclic servos with Hitec because one hk servo was>my Hk550
 Yesyns 138 points
Hitec HS422 sit nicely when you fit them on the cyclic>HitecNS422
Customer Reviews
Overall Rating
Like it?
I have just received my HK550GT today 5-25-12 It seems to be very high quality and Very nice kit for the money. Sorry if I won't be able to give you a "builder's review" or "flying test" at this time. But i will be checking every screw and reloctiting and checking the thrust bearings to see if they have been greased I've yet to see thrust bearings come greased in any of these kits. Like always no manual but a Trex 550 manual can be downloaded

12 comments. Reply..

Overall Rating
Like it?
After owning all versions of HK's helis I jumped on this one. I really wanted the TT version but I couldnt wait (figured I'd get the conversion when it came out). I was very please with the quality of the 550 when I took the parts out of the box. It seems they've geared up thier engineering. Don't have any flight reviews just yet but the build was going great until I realized I had two tail rotor push rods and no flybar. Also, the stock canopy was strached pretty bad when I pulled it out of the box - didn't really care about that because I always replace the stock plastic canopy with one of higher quality.

For those wanting this kit - I suggest waiting until HK has flybars included in the boxes that are sitting on the self.

2 comments. Reply..

Overall Rating
Like it?
А в чём прикол? Брал такой же, но Всё косое и кривое. Из угля только Ещё и с движком Skorpion за заказ приняли, а потом вежливо что мол по такой цене уже нет, хотя на момен заказа всё OK! Пришло

No comments. Reply..

Overall Rating
Like it?
j'ai osé essayer cet hélico "low cost", évidement il y a mieux mais pour le prix c'est parfait, le débutant aura un équivalent shuttle (tout métal avec flancs carbone quand même) , pour s'entrainer ,même au 3D c'est moins stressant car le risque financier est moindre. la taille permet de transporter facilement. simplement génial , je vais en recommander un deuxième comme mulet et je ne prendrai plus de risque avec mon hirobo eagle

7 comments. Reply..

Overall Rating
peter s
Like it?
I now have the 550 flying and am pleased with the way it performs.However there are a few issues that potential buyers should pay particular attention to.I always like to spin the heli without blades to check vibration,and after the second time my tailshaft bearings collapsed which is strange when hk state that they are high tolerance bearings.The tail boom support rods came out of there sleeves,a few of the main shaft screws were loose (no locktight) and quite a few holes had to be clearance drilled in the c/f frame. Finally I was supplied with two tail pushrods but no flybar.
I will still be buying from hk as the value for money connot be bettered but as always will continue to check and double check all components prior to flying.

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