king 2 rotates around its own axis

kristefer

have a honey B king 2..

been nothing but trouble since got it..

belt would not track on guide pulley at first - after 5 runs motor burnt out... have fitted brushless now... but am just about had it with this thing... so hoping that someone can put me right...

have set the thing up as per the poor chinese instructioins.. but now as soon as airborne it rotates quite fast round its own axis... have tried many ajestments... the giro gain etc... in so many days... in fact have spent 2 days on the thing and STILL it will not fly..

it does'nt even respond at all to rudder.... the tail ( rudder ) blades do move freely and as far as poss the servo is in centre when controls are... but still as soon as it gets an inch off the ground round and round and round....

hoping some one can suggest just where I have gone wrong.... and it is a load of tripe that these are flyable out the box.... like heck.....

thanks... Kris. ...

dealer now ignores E mails for help... thanks... RC mods....

tombo242 · Posted: Thu Feb 05, 2009 12:34 am Post subject:

Hi kristefer,

Sorry to hear about your troubles, sounds like a "Friday Afternoon" model there!

How's the belt drive? It sounds as though it's not giving full power to the tail rotor. I assume that the rotation in flight is through torque and not against it! Check that the tail blades cannot be rotated without the main blades trying to turn and vis versa.

Also is there any slack in the servo connection? i.e. Do the tail blades move exactly as the servo moves?

Don't give up, you can lick this!
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kristefer · Posted: Sat Feb 07, 2009 4:02 pm Post subject:

thanks tombo - yep hav checked the belt but some one has said that the giro may not be set up correct... do you happen to no Y the giro comes switch is set in reverse ? ( i hav tried it in normal setting ) & apart from the gain control what else is there to set... I hav the servo for the tail blade in the upright neutral and the 1 /3 as per the book set at the tail.... and the blade do move ( when stationery ) to the servo..... am just about to take another look & hav another go.... i liv inn a bit of a remote area ( Cumbria ) - am try inn to find if anyone else is in 2 fly ing these things around here... may get sum help... ther R certainly some smart poeple work near me up @ the sellafield neuclear plaice.... but i can hardly start canvassing the workworse there... any how... as you say... don 't giv up.... i won 't - thanks for your help..

tombo242 · Posted: Sat Feb 07, 2009 10:51 pm Post subject:

Know what you mean about remote Kristefer, I was stationed on Anglesey for a while during my RAF service.

Does the spin only happen when off the ground? Will it spin before lift off if you put it on a shiney surface?

You didn't say whether the spin was torque (opposite direction to rotor spin) or not. This does help a bit in trying to sort out the problem. The gyro usually helps to control the tail, if yours is at fault to the extent that the heli spins then it sounds as if it is locked in one position.

You could try clamping it down to a table, running it up to normal hover power and watch the tail rotor as you move the rudder stick left and right. If the servo control of the tail is good you should see the rotor blades changing pitch with no change of RPM in the blades.

If this is not so, then we have an electrical problem which comes in with power, as you say the blades do move (when stationary).

There are other things to try, but let's move slow and sure.
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kristefer · Posted: Sun Feb 08, 2009 7:33 pm Post subject:

thanks for your continued help - the spin will commence just short of lift off and it directioin is torque related as it is in direction of rota.... i have had some little success yester day in that i set the tail blade quite a bit over ( leading edge ) towards the boom... i set the rest ... servo / 1 /3 settings in centre / neutral... and low and behold the helicopter took off ( nil wind conditions ) and stayed straight and did not rotate.... but sure ly this is an incorrect setting ? the tail blade should surely be straight in the neutral position ? - i have sent for new metal clamp set as i think this may be ( worn ) some of the problem... was gratified to get the thing off the ground and no spin from it.. however... i was so interested in assesing the thing & not paying that much to the flying that i had a little prang and have 2 linkages snapped... i had one in stock so am waiting for spares now... but i would be interested in what your comments are as to how i got the thing to stay straight...... am away next week... am a tour coach driver... but when i get back will obvioulsy hoping to at last get some decent flight time... thanks again.... Kris...

tombo242 · Posted: Sun Feb 08, 2009 9:23 pm Post subject:

Hi Kris,

Good luck with the coach in the weather your having in UK.

I think you will find that you need the tail blades set at a slight positive pitch even though the main rotor is at neutral. There is quite a torque to just spin the blades through the air, and this must be countered by a degree of positive incidence on the tail blades.

This should be in the manual somewhere but as you say the Chinese/English translations are not always the best Evil or Very Mad

. I've often found the Chinese/French translations clearer than the Chinese/English. I think that the French make a great thing over the correctness of their language and it shows!
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kristefer · Posted: Mon Feb 09, 2009 2:16 am Post subject:

Ok thanks again tombo.... your help is most welcome.... book wise i thought i had set the thing in a right stupid fashion.... before i got 2 involved with me assesment it was flying ; or seemed 2 B ok.... sew when i get the linkages renewd i will leave the pitch angled against the torque and hopefully it will be ok.... .. weather hear is fine.... but am heading into the worst bits so it seems tomorrow... thanks again.... when i am bak in a week or so... i will let you know how the helly went....... kind regards... Kris...

tombo242 · Posted: Mon Feb 09, 2009 9:57 pm Post subject:

Thanks for that Kris, glad things are improving.

Looking forward to hearing from you.
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kristefer · Posted: Sun Feb 22, 2009 9:35 pm Post subject:

hi tombo - from Kris...

hav spent a lot of tyme on this helicopter & pleased to say things looking up... hav replaced the tail blade unit in metal.. done some work on the main rota head ; made some better fitting for fixed tail planes etc... and made a much better training frame that is solid... was a little worried it may have been to heavy to get a lift off... however... have flown it now and it seems Ok.. tho there are one or two areas that i think i will improve by upgrading to metal as against plastic... had a bit of an odd fault yesterday... the giro started to flash intermittantly... thought it was due low battery but charged up & it was 'nt.... checked all connections .. switched on again and been ok since.... bit to windy hear now ; but am thinking positive ; am recharging and hoping for a drop in the wind towards the end of the day.... bout harf 5 our time..... thanks for your help... if i get inn a mess again hope i can call on you .... have learnt quite a bit from fixing this thing.... trouble is i 'll get hooked big time and want to move onto a petrol when i get good ( if i do ) at this.... kind regards

.... Kris....

tombo242 · Posted: Mon Feb 23, 2009 1:20 am Post subject:

Thanks for the update Kris, glad things are improving, anytime I can help I will. (As long as it's not money, us pensioners do not have too much of that these days!)
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tominator06 · Posted: Sat Mar 14, 2009 9:41 pm Post subject:

So hows the king flying for you now? I just joined this forum today and was reading this thread. I am a newbie as well and got a king for my first heli the end of january. Ive crashed quite a bit and am getting much better now. Simulator is a must. I flew about 3 weeks on sim before I actually tried a flight. This was because I bought my king from a seller in hawaii and the shipping took almost 30 days. I realize now it was for the better. What gyro are you running? I had my telebee die and have a stock gyro on right now which has a similar led problem. Sometimes it goes out completely. But I seem to have control of the tail. I tried another used esky 25a esc which did the same thing but fried after 3-4 packs. I bought a new hobbywing 30a esc but have not installed it yet. Been spending most of my time with the new 450 lol. I wonder if this may be the problem. Maybe even the reason the telebee died. It seemed to loose power in similar fashion but when it did I lost the tail. When loosing power I think the hh gyro stops at whatever corrective position it is in because it holds its correction until the original heading while a rate gyro is back to neutral position immediatly after correction. Bad wording but the point is rate gyro is at center more of the time than a hh gyro. This gives a better chance of saving it without spinning totally out of control. Ok I am getting a little over my head so I will stop jabbering LOL!!. Good luck and happy flying.
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tominator06 · Posted: Sun Mar 15, 2009 4:09 am Post subject:

Well I tuned up the king today and to my delight the esc was bad. The new esc powered up the telebee gyro without any problems. Glad I didn't throw it away LOL!!. How are you making out with yours?
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Cwoodkiter · Posted: Sun Jan 10, 2010 1:37 pm Post subject:

I just got my first real copter and it's also a HB K2 and I seem to have the same problem (by the way mine is used and I have no manual except for the one online). So I have to ask a few questions..... is the tail rotor supposed to spin towards the nose of the model? (note: according to the poorly worded online manual it should) Are the blades on the tail rotor supposed to turn towards or away from the leading edge (does that make sense?) And lastly, my model is spinning counterclockwise, would that mean that I need to pitch the tail rotor with the leading edge towards the boom? Btw, I hope this isn't considered hijacking a thread, I just figured that because we seem to have the same problem that it didn't make sense to start a new one.

Thanks in advance,
Brock

derekby · Posted: Wed Jun 02, 2010 9:30 pm Post subject:

tom, thanks for the great tip!!!
I read the post, printed, took it home..save for the fact I need new blades, I think sliding the tail servo up the tail (to increase the tail rotor pitch) certainly helped with my problems of spin!!!!
I now have lots of left yaw control. Now just need to win the millions to get some funds to repair my "Sea King"
Cheers, D
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When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always want to be. -DaVinci-

derekby · Posted: Fri Sep 03, 2010 6:36 am Post subject:

WOW, an amazing thing happened tonight!
I finally got some time to play//adjust a few things. Used some synthetic grease on all moving balls, re-weighed and weighted my blades, put some nuts on the paddles, adjusted the tail rotor servo along the boom a couple of tries and VOILA!!! My HBK2 doesn't spin so much on the training stand.
Now just to get her outside on a nice non-breezy day and see if my adjustments worked.
Thanks to everyone for all the little tips here and there on how to make the bloody thing fly.
Once I've got some techniques mastered, I'll be getting an Airwolf canopy~~~

WOOT!!! this site rocks!!
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When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always want to be. -DaVinci-