stablebility issue esky
 

hi i had a quick look thow the fourms and i could not find eny think to help me but the simplist thing is oh by the way its a esky honey bee king 2. it hovers well very stedy but some times if i move or judder the stick a little or some times just moving side to side or forward or backwards makes the hole heli starts to wobble quite badly almost lost control once did not crash luckery but i have made shore the blades are tracking right thing is it some times dont do this i have tried diffrent pitch(roter head speeds) and on the pitch control i have to have it a 1 dote below the (0) mark thats where it seems to be most stedy but still wobbles eny one know why thanks karl

RE: stablebility issue esky
 

it could just be part of the inherant nature of a cp heli. Especially these small ones. Some other things you might check is to see if everything is tight and your setup is like it should be. Most of the time these kinds of problems come from setup. Also I am not sure, but if the heli has a hiller head instead of a bell hiller head, that could have alot to go with it as well. One other thing to check is that your heli is well lubed with something like teflon, espeically the blade grips. Be sure not to use petroleum based lubes.

The secret to heli's, especially these small ones is to be real smooth and even on the stick with small movements.

If you think something is wrong, maybe you could try taking a video or something of it, that might be easier to identify

RE: stablebility issue esky
 

thx i will make a video as soon as my battery is charged stay tuned

RE: stablebility issue esky
 

got the video it is hard to see the wobble but if u wach the tail u can just about see it

http://www.youtube.com/watch?v=MCxQwvu3H9A

RE: stablebility issue esky
 

yeah I see what you mean. To me that mostly looks like a servo is going bad. do a static test and see if you can get the servo to twitch like that, with the motor unplugged. If you can, try moving it to a different channel and see if it does the same thing. If it does it is the servo, if it's the channel then the receiver, or something with the link, like some interference could be the problem.

GL =) The video worked out well

RE: stablebility issue esky
 

i have dont meny times no thres no twitching at all ..?

RE: stablebility issue esky
 

try to put a bit of a load on the servo and move the transmitter around like you do in flight

If it still doesn't, make sure everything has got a good lube with some teflon lube and see if that does anything. That really looks like a servo twitch to me though

RE: stablebility issue esky
 

will do my battery done in 10 mins :D ill try that out

RE: stablebility issue esky
 

iv got the elitricks working no twiching.. but the elovater (very front servo) has l little bit of slop in it only about 1-3 mm thow
getting new blades ill try the heli with new blades as it flys ok with a hight roter speed it might be the blades??
getting new ones today i hope lol

RE: stablebility issue esky
 

just flying it now brb

RE: stablebility issue esky
 

well from what i learnt with that flight is it serpost to do this?? if the roter speed goead to lo it starts the wobbles rely badly is this bad inblaced blades???? im losing flight time having to keep the rpm so hight
thx


another think is this the bad brushed motor the batterys(lipo 1000mah) is at 70c !! well to hot[X(] and the moters at 100c!! with heat sink installed i have cheked that all parts can move freely?!?!? im getting about 7 mins out of a flight

RE: stablebility issue esky
 

karlthomas,

Your wobble is caused by low head speed. I had the same problem with my King 2.

Possible causes:
- dying main motor (the stock brush motor has a short life)
- too much pitch on the main blades
- pinion gear is too small
- binding somewhere on the head/belt drive/tail (they're all connected)
- gear mesh is too tight
- a combination of 2 or more of the above

Try reducing the pitch of the main blades. With less pitch, the rotor has to increase speed to get the same lift. That means more head speed, but it also means the motor is working harder. Your flight times will get shorter. Do balance the blades!

A bigger pinion will increase head speed too. But same thing, the motor will work harder.

Double check the whole drive train for any binding.

Adjust the gear mesh.

The best solution is to replace the stock main motor with a brushless motor and ESC. A good budget motor/ESC would be the ESky 3900kv motor and ESky 25A ESC and a 9t or 10t pinion. It's a drop in, so no modification is needed.

I fixed mine by going brushless and getting a better radio. It's a whole new machine now!

Good luck with yours!

RE: stablebility issue esky
 

thank you it seems to be the head speed with the cr*p stok motor i think its drawing curront to quickly and wer its life is very short its not giving me the power (my lipos gets to over 70c temp!!!) i have to almost fly the heli with the motor at full thotal with the pitch knob at -2 but i am getting the 3800kv brushless moter soon so i am hoping that that will curer it

at xmas im geting the dx7 !! carnt wight

RE: stablebility issue esky
 

ok not im p*ssed off i cannot fly the heli for longer than 1 min [:@] the stok moters giving out and so has the lipo they give you a 10c witch is not high enuf [:@] the lipos at over 70c in temp agin
cannot wight till my brushless gets hear:D and now i need a new lipo[:@] orderd one of thows

RE: stablebility issue esky
 

if you've got the stock brushed motor on it, you defiantely need to replace it and get the brushless and then revisit this problem them. It's possible the dying motor is creating some interference problems. I would agree, go with what WRX said =)

The wondering I am seeing is caused by over correcting and wind, and possibly low headspeed.... but that is not the problem I am talking about. Watch the movie, and right around 54 sec you will see the heli pitch up and down about 3 times in rapid sucession. The only thing that could do that is the servo (through interference or failure), or a linkage to the servo is comming loose or something.

RE: stablebility issue esky
 

i think its the moter eny way now i can hear that the head speed comperd to some other vid and a m8 who has a simpler heli that the head speed is low fitted some carbon blades and lol i need the pitch nob at its lowest but that cuers it orderd the 3800kv moter should be install mid next week so i hope witch it will ;) the new brushless moter will keep my head speed nice and high :D cannot wight im only doing rely basic thinks so i wont crash lol [8D]
ill update you all next wekk wen i have news

RE: stablebility issue esky
 

Have you checked head dampening ? If you have the blade grips torqued down on the hub youre gonna wobble. You will need to loosen up the 5.5mm nuts that hold the blade grips on. This will allow more flexibility in the hub and get rid of the wobbling.

RE: stablebility issue esky
 

yea the blade grips are nice and lose iv been told if you can flik the blade 90o (rigth angle) there right thx for all your help :D

RE: stablebility issue esky
 

what do you guys think of this as my new battery http://alshobbies.com/shop/lookupsto...?pc=4887&Desc=

RE: stablebility issue esky
 

hallo eny one there?

RE: stablebility issue esky
 

you would have to solder the ends on, and I'm not sure that it would be compatible with the stock lipo charger. It's kind of an off brand, but it is about the right size for that heli

RE: stablebility issue esky
 

lol i have the esky 1-4 cell lipo charger im shore that that would charge that fine its very light comperd to some others

charger( http://alshobbies.com/shop/lookupsto...?pc=6924&Desc= ) is this a good charger or a crap one??

RE: stablebility issue esky
 

that's probably a so so charger. I have the 2 or 3s version of that charger and it works pretty well. It doesn't give you much info though. As far as charging it will do a good job, but as far as using it to diagnose any problems with the pack, you'd need something else =)

RE: stablebility issue esky
 

ok. what do you recomened (im in the uk)

RE: stablebility issue esky
 

not sure what is in the UK, but alot of people go with the cellpro when they are on a budget. It runs about 60 or 70 bucks here in the US. www.fmadirect.com