5 Blade rotor head for V2 or newer HK Heli. Quality machined components ensure tight fitting shafts and bearings with little to no slop for accurate flight characteristics. Blade grips take standard 325mm blades. Dont be mistake by the price, the quality of this rotor head is excellent!
Hi, I believe you could use the normal Flybar type setting for this heli head. Does not have to be a flybarless. The only tricky part for this type of head is the Blade Pitch adjustment. When i set mine, i have to set the Pitch adjustment to zero in the radio. Then i measure the central position with the throttle stick so i know which is the neutral stick position. Then manually adjust each head push road from the Blade Holder to swash plate. To make it easy a more precise-if you don't have the electronic pitch gauge, i fashion a plastic insert between the swash plate the heli body top. Once all is done you could now set it as normal Flaybar setting. (Adjust back the pitch to neutral on zero throttle stick position). I hope this help.
5blade head set up.
What is correct length of the 5 links? If shorter than 42mm they bind on the swash coupler. If longer than 44mm cannot get the -2 to 7degree pitch on the blades. I'm using a BeastX.
This head has 20deg of radial slop in the swash coupler. Normal?? Am I being too fussy?
actually it depend on your flying style. If you are aggressive and do a lot of Aerobatics you may want to have more on pitch. However if you are more of Sedated or Scale flying then you would to set the the pitch to less. Higher pitch would make your heli overly responsive, which is ideal for More Free Style Aerobatics. I hope this help.
Hi to all, I have had problems with this head, I bought another, you can have a detailed picture of the head mounted (the illustrative photo on the site is true?). I have another question, are the spare part?
I've tested mine with an all in one Spectrum Head/Tail/recieve gyro in a HK 450. works well very stable, but the tail needs more strength. Looking into getting a 4 bladed tail. so far all I have found is CNCheli and they are back ordered. I might try the 3 bladed tail but was going for the Scale look on my Magnum PI MD500E.
If blade 450 rotor axis have same lenght and radius, it will work as is. If lenght are different, but same radius, you can try to fit only head on de blade 450 standar axis. Other case, it don´*t works.
If your shaft have same diameter (i have done wrong measure, 5mm are diameter, not radus, scuse me) you can fit the rotor on your hely, but you will need to fix it in some way, as i think ring on top of fusselage and pinion fixation on bottom are not the same as TREX and HK helicopters on your heli.
I have installed this head on my heli. I am having a problem with it. The head portion (with the blades) is not perfectly level on the shaft. Instead of being at 90 degrees it seems to be a degree off. There is a low and a high side to the rotor disc. The head is snug on the shaft and bolted tight. The shaft is straight. At speed this non planar rotation causes a very bad vibration. The heli is not flyable. It is still attached to the turn table and is clearly not ready to be released into the wild. My question is: Has anyone else had this problem and how did you fix it?
The head was not aligned as I said. The blades were balanced. What I did was disassemble the whole thing. I squeezed the clam shells completely closed then using a great amount of force pushed the naked head onto the shaft, aligned the holes in the shaft and head then stuck the bolt in and put the nut on loosely. I then installed the shaft in the heli. Using the transmitter I spun up the head looking at the wobble. It is easy to see the wobble at high speed but it is hard to keep track of it as it slows down and stops. When I could track it I clamped a pair of vice grips to the top of the head and wrenched it in the right direction being careful not to bend the shaft. It was a slow process but I finally got a good result. Of course after reassembling the head I had to re adjust the tracking from the beginning. The story has a happy ending. I flew the heli for 2 complete batteries last weekend.
The main rotor housing on mine is machined oversize by a few thou, so it wobbled on mast. I wrapped the shaft with a single layed of some shim brass and reassembled. Tight as a drum now. Don't ever force anything! These heads rotate at nearly 3000rpm - so if anything let's go it's not pretty.
Hi, I want to fly this head with EBAR stabilsation unit. I've checked the pictures uploaded to files, but they show several different ideas about how to mount it properly. Please help me, which one of these has been proved to REALLY WORK with EBAR!
Are you talking about how to mount the EBAR or how to assemble the 5 blade head? The EBAR is easy. Put it as close to the center line of the main rotor as you can.
The rotor head can be assembled two ways, both work fine. You can do it per the HK photo with the blade control arms leading the blades or (more traditional) arms trailing the blades. just be sure the drag link is positioned to clear the pushrods as much as possible (you turn it over on the shaft to change from lead to lag) then l
Your welcome guys, I've just uploaded the Proper Mount pictures... Aka (Proper Mount 0,1,2...4) This is the way I have it setup. The rotation of the gears is clockwise from top down. So yeah I messed things around to make it work the way I think SHOULD work. Let me know if anything wrong kay....Im no pro, but im GOOD.
I think you have same problem as me when commencing with this rotor...few experience...you have taken teory and apply to this rotor...but you have confused one think: the command must be 90º before the blade, not after the blade as you show on your photos. Your mounting i think works rotating on oposite mode as you think (if it is not command links interference problems)
I had this setup as seen in the pictures flown a couple days already. This worked for me. The command arm being at the trailing edge worked better for me because the tilt angle on the links were lower. If I had the command at tr leading edge. I would have a hard time getting the pushrods go negative pitch as the angle is too steep. It all depends on how you phase the thing. I've done mine up according to the awash movement on a blade 400 and blade mcpx both of which are 3D capable.
Hey I got mine setup today for doing 3D after changing the linkages and pitch adjustments while throttle slider was at 50pcnt up and throttle hold on. Yeah it can negative pitch about -20 degrees.
Will test soon though.
This that you describe is not wron: command must be anticipated around 90º from blade on flybarless rotors. Exact angle for fine adjust depends on other variables and flybarless controler sould have a "phasing adjust" to do this.
By the way, they are "Flybarless". It would be nice to organise them in the "Flybarless" subcategory (of the "Helicopters & Parts" category). I'm interested to try 5-blade and 3-blade (also 3-blade tail rotorhead). HK doesn't have so far.. I found at other sources, but they are 3 or 4 times more expensive! Can anyone of the shop team advice when the HK 3-blades show up? Please also organize them in the "Flybarless" menu.
Does anyone know if the 5 blade rotor head will work fine with a 2 blade tail rotor, or do you have to upgrade the tail rota as well? Sometimes I have a hard time holding the tail in place even with a 2 blade rotor head!
Use tail blades from a 500 size on it and it will do fine. But you can buy 4 blade tail rotors for under $60 which will work much better than a 2 blade. Remember you have to lower your head speed and change all your pitch and throttle curve & AFR settings to be more docile. You power this head with a 2 blade speed your helicopter will destroy itself.
when oh when are you going to produce one for the hk500 cmt with the matched scale blades to add to a nice scale 500 size fuselage i am holding off from ordering my 500 cmt tt until their is a scale head to order with it
it is always question what is better... my head even didnt fly for real till today.. no time for it.. and I have even steel improvement the original was realy nasty cnc ****... but I think I had bad piece*( what rpm are you using for head?
Still unused. I was verifying the screw retainer and one screw was broked inside the holder shaft. Impossible to get out the broked part, I cutted the shaft and replaced with a longest screw, but I'm not sure I can fly with it.
not a good idea to use the stock blades.
you will have problem with you AC.
i experienced 5-blade rotor on 450, to have a nice fly, you will have to go thru a big setup on you heli, hight W and low KV motor, plastic scale blade "soft" and a flymentor... i can give you all the reference that i bought here on HK.
Have a look at some of the U-Tube videos of 5 bladed heads. They are not a straight swap. I agree with the use of scale blades and a flybarless gyro. Depending of how good you are you may get away with regular tail gyro but multi blade heads have strange pitching moments in forward flight according to a full size pilot on a Eurocopter AS355 with three blade head.
I tried without the flybarless stabilizer, its very sensitive. Just touch even the rudder and the heli almost goes out of control. Landed the heli and aborded the project. Will make a great ceiling fan though lol
Head speed should be adjusted if you are using the standard blade...using it in this 5 rotor head will give you more lifting power on the same rpm then loosing the tail...
Before making any changes on your transmitter, try to hover it first for you to feel how much is really needed for the adjustment. enjoy the hobby!!!!!
You can use a smaller pinion gear to reduce the head speed. Also, use larger tail blades to get more authority. Consider also the scale length** shorter blades take less power to spin up. So with the greater lift of 4 or 5 blades all of these option are availible to you.
I purchased this 5 rotor head and I intend to use this for my Align V2 and HK Hughes fusalage, do i need to: 1. repalce the tail rotor with multi blade also? 2. can I just replace my exisitng 2 balde rotor without the use of stabilization electronics?
You don't need a multiblade tail rotor, but is very convenient to use more larger tail blades. I use carbon fiber 68mm tail blades from hobbyking (hobbyking product id 10828).
Use of barless rotor without electronic stabilization is very "hard", but i have read about someone who do it. He says that with very little command at aileron, elevon and pitch and usin exponential rate he can control it. I will not do it, i think is too much easy and cheap (because less crashes) to use a electronic esta
You will not need a stabilization system if you phase the head properly. When using a 3,4,5 blade rotor head you have to lower your head speed. All my 4 & 5 Blade helicopters use 11 tooth pinions. You will also need to lower your throttle & pitch curves. It is not necessary to change tail blades or rotor system. Just keep the main head speed high enough to turn the tail system fast enough. Get a fast digital metal gear servo too.
Advantages...i think none...two blades barless rotors have advantage of less components, less drag, more autonomy and agility...five blades have more agility, but too much more components and higer drag and weight... and, if you crash, too many blades broken. I have one of this 5 blades rotors but i buy it only to make a scale Sokorsky S67 model. I have do some short flights with it and motor and ESC are very hot. I have retrofit to original V2 rotor to fly without problems.
Advantages are scale look and better load lifting capability (when provided with sufficient torque). Disadvantages are the loss of stability unless assisted by a flybarless system, more complex/involved setup, and reduced tail rotor authority.
5 Blade helicopters require lower head speed, lower pitch settings, less aggressive throttle curves and smaller pinions. Also needed is larger ESC and larger mah batteries. My throttle curves on my 5 blade 450's is 40pcnt max. Maximum pitch is 6 degrees.
Yes, i have use it on HK450V2, that is totally compatible with T-REX. You only need to do some corrections on pitch curve
2 thumbs up!
I have received my new rotor head, and very impressed!! However, it is not totally assembled, and I want to know, does anyone have a manual or photo instructional file, in order for myself to put it together correctly?? I will be placing it onto a HK-450 V2 without correction software at this time.
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2 thumbs up!
Seti eime alip inceldigimde bir rulmann biraz daha sert oldugunu grdm,bunun haricinde gzle grnen bir sknts yok gzele benziyor.
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1 thumbs up!
hi, mine recived yesterday, first fly with 2150 rpm head-speed in a agusta A-109 fuselage. what can i say? awesome!
great stuff hommyking!
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1 thumbs up!
What a great product! You have done it again hobbyking. built very nice!!! and very smooth movments. But I think that they put the U-shape washout arm on backwards. I put mine the other direction and it fits much better. But way to go hobby king Just an amazing product with a great price. Keep up the good work. Im using 325 mm blades and a 12 tooth pinion with the stock align 430xl 3700kv motor
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1 thumbs up!
What a great little 5 Blade Head ! Just ordered number 2. Flown in HK450 once set up flies rock solid No Extra Gyro or Electronics Needed just set it at 90 degrees and fly it ! You might need to soften your swash inputs to fine tune it but you can swap it out for a two blade and just fly. Keep head speed up for tail authority keep 0 pitch curve till about half throttle or where you hover very little pitch required, The Photo Is Wrong Set Up !