HK-450GT CCPM 3D Full Alloy Helicopter Kit (Align T-Rex Compat.)
This is the upgraded alloy version of the HK-450MT helicopter kit. 99% of parts are compatible with the Align T-Rex. Heli includes full v2 features and alloy components plus a CF frame and full bearing set. A quality CNC Milled, lathed, water-jet cut, laser etched, sandblasted, anodized and packaged helicopter at an unbeatable price!
Spec. Length:660mm Height:230mm Main Blade Length:325mm Main Rotor Diameter:700mm Tail Rotor Diameter:150mm Motor Pinion Gear:12T/13T (Not included) Main Drive Gear:150T Autorotation Tail Drive Gear:106T Tail Drive Gear:25T Weight(w/o blade):450g Flying Weight:730~760g
This V2 version some years ago had closed bearings on the tail rotor shaft and pulley. The one I'm building now has open bearings. While I can see they are easier to keep oiled, they are also easier to get dirty. Does anyone know which kind last longer? Should I replace them with the closed type right from the start, or try the open ones?
Clearview's physics are okay, but aren't really "realistic". You can slam a chopper into the ground in the sim and it won't be considered a crash, but in real life it would have been doing a chicken dance on the ground.
I played around with a bunch of the sims a few years ago (as in 2010) and found Phoenix RC to be the most realistic helicopter sim out of all of the ones I tested.
Clearview seems like a bargain at the price it's offered at, but you get what you pay for.
timothy, I will have to agree with Gerry01, the Turnigy plush 40amp sc is a good one, I have one on my 450 v2 and it is simply flawless. Set up on very slow start, the blades come up to total head speed slow with no fear of stripping gears or taking off out of control. GREAT ESC and the price is right to.
Gerry01-I am using Turnigy 450/500 H2223 Brushless Outrunner,Hobbyking Red Brick 50A ESC(Heli Mode),Turnigy 2200mAh 3S 20C LiPo Pack,Corona 919MG Metal Gear Servo(For Tail Servo),Corona 939MG Metal Gear Servo (Fro Cyclic Servo) x3.Do you think it wil fit easily into this heli?
Yes it will! ESC goes under batt, crossed (wires in left-right direction, not front-back), motor mounts in the only place it goes (look that you have 16.5 and 18 mm mounting holes, the holes in the heli go only in one of them), servos have their place and can't go anywhere else, and finally you have plenty of room to place the Rx under the main gear near the back. Gyro goes over or under the boom grip. Of course you don't have a lot of space to spare, but you can work easily with the components. At least, it won't get much easier on any other 450 heli!
It's not hard at all. Of course depends on your actual hardware. I have a Turnigy 9X radio and receiver (pretty big), a Turnigy Plush 40A ESC (big enough) and also mounted Flymentor (big as receiver, plus camera and 3 axis gyro) on this heli. Adding Flymentor was tricky, but not hard :-)
I have both. I prefer the GT, it's easier to fix after a crash, easier to access the aileron servos, screws don't strip as easily, and it doesn't transmit vibrations through the main frame as much as the one peice PRO main frame.
This is a two step process: first you need to understand how a collective pith heli works, in normal and idle mode. Second, once you know what you have to configure, is to put that in a config in the radio. When I'm back home I'll paste here how my setup is so you can have a guide.
On the 9x, when you copy a model or select a new model (system menu), select heli, and mode 1 or 2 according to your Tx. On the func seting, with Aux3 switch in N (up all the way), in thr curve, use 0%, 25%, 50%, 75%, 100%. In pitch curve, use the same. Now, with Aux3 switch in 1 (this is idle one) in thr curve, use 100%, 75%, 50%, 75%, 100%. And in pitch curve, the same as before: 0%, 25%, 50%, 75%, 100%. This way, you always start in normal mode, and thr curve starts in 0%. when you have your heli hovering you can flip to idle 1 and you're ready to do inverted flight and 3D. In this way, the motor never RPM when you are inverted. And having the same pitch curve in both modes prevents your heli from "jumping" if you change modes during flight. Hope I made myself more or less clear :-)
Arthur, on this heli, its easy but its à* long processus and you have to be carefull the processus and the programming of your transmitter are the same as t rex 450 ask me questions, but to explain its à* little long....for safety don t Forget to disconnect the three wires beetween esc and motor
Arthur you have on youtube à lot of vidéos helping for the settings, also, on the site helifreak you CAN lurn à lot , but you must do the training on simulator Like clearview (not expensive) or realflight, first you must be able to hover ...if not the hobby Cost too much...
I'll never buy this again.. it's very poorly fabricated and shaft is not straight. I have it here for a week now but it is impossible to get it to fly. Sending it back costs more than the barebone itself. I'm really disappointed cause I just spend money on something that is ending up in the trash:( hopefully hobbyking does something about it..
Well, I think most of us are aware of the quality shortcuts... after all, a similar Trex heli costs ten times more! But you can always buy 2 units and use the best parts, for the price it's really a bargain. Of course it's not something Alan Szabo would use, I think, but if we're here browsing this cheap parts it's because our pockets are not so deep... at least mine! :-) Seriously speaking, I'm sorry to hear about your bad luck.
Guys,Do you think this is a good setup for this heli?
HobbyKing GA-250 MINI-MEMS Gyro
Turnigy 450 H2218 Brushless Outrunner 2100kv
Hobbyking Red Brick 50A ESC(Heli Mode)
Turnigy 2200mAh 3S 20C LiPo Pack
Corona 919MG Metal Gear Servo
Corona 939MG Metal Gear Servo
Yes, it's good, just I would use the recommended 3500 kV motor, not a 2100 kV unless you use a 20T pinion. Also remember: pinion, XT60 connectors for ESC, bullet connectors if you like for motor, thread lock for screws, and a 1.5mm hex screwdriver if you don't have one. And of course, a lipo charger, again, if you don't have one.
Use Corona 939MG Digital Metal Gear Servo 2.7kg/ 12.5g/ 0.13sec PRODUCT ID: DS939MG for cyclic and for tail use HobbyKing HK-922MG Digital Metal Gear Servo 1.8kg/ 12g/ 0.07sec PRODUCT ID: HK-D922MG. Best combination that will last you a long time.
Yes, this is a very good servo my flying bubby use this servo.
20 thumbs up!
This helicopter has to be the best value for money going. The only critisism I have is that there were no instructions at all. I already have a Trex 450 and it is exactly the same at a fraction of the price. I test flew it as soon as it was assembled, the only adjustment was to set the pitch as one blade had 14 degrees and the other 10 degrees. Dam good for straight out of the box (head pre assembled) Thanks for a great heli.
13 comments. Reply..
8 thumbs up!
This helicopter is fantastic for the price. However this is very important- Locktight everything prior to flight. I had the feathering shaft come loose and the blades ejected right in front of my face. Assume that nothing is locktighted and go through every screw. That being said The helicopter flies awesome and is very stable. I fly mild 3d with mine. Several of my friends have used this helo as their first with great success.
This is one of the best HK450, more CNC and CF, good choice, the quality looks very nice, main rotor and tail well build, CF main frame looks acceptable for quality/price relation...a most buy kit...
5 comments. Reply..
7 thumbs up!
This kit far exceeds the HK450MT! You get way more for the $3 difference: rotor rod guides that actually fit, real screws, metal tail gears, aluminum motor mount, billet flybar seesaw holder, paintable canopy, alloy tail boom support ends, better washout base, space to mount the gyro under the tail boom, and more.