Spinning In Circles?,, ( head turning right):(

[clustermarc]

HELLO ALL, My name is Marc,,, I have just joined this site, sites like this are great help for all
I really hope someone can help me, i have just brought a new Walkera Dragonfly 4# but im having abit of a problem i cant get the heli to stop turning right (spinning) ive tryed adjusting the rudder trim on the handset controler but even when i push the rudder trim all the way left the heli still spins right, ive even tryed having the rudder trim all the way to the left and holding left on the steering stick but it still keeped turning right (spinning)
IM VERY CONFUSED, im quite new at rc helicopters but this is not my first helicopter i had this problem on my old heli but i was able to fix the problem by adjusting a screw a the handset control and then adjusting the rudder trim, But i cant find any other adjusting screws on my dragonfly 4# controler or helicopter..... PLEASE PLEASE can someone help me? thankyou for your time and help

[Leebert]

Hi Marc and welcome

I'm not sure if the Dragonfly is the same but I had a Honey Bee and had a similar problem after a post - crash rebuild. It turned out that I had put the connector for the tail motor in the wrong way around and the heli just span around in circles. Once it was in the right way it was as good as gold

[clustermarc]

hi mate, thanks for the reply. well i have nothing o lose so ill try having a look at that and if i can i will change around the connector but im sure if it was in the wrong way it would have reverse control.(turn left when press right) but im gonna try anyway mate ive nothing 2 lose

[Thomas]

If the tail has its own motor then there will be two small pots on the receiver/gyro unit which alter the gyro gain and the tail motor speed.

You say it spins right, do you mean the tail or nose? as if it is the nose then there is too much power on the tail so reduce it and if it's the tail then there not enough - think I have that correct - so increase it, or the tail motor is buggered.

When you plug any heli in it is important to keep it still while it boots up, I didn't know that when I first got one and it was a bugger to fly

[clustermarc]

hi tomas, thank for the fast reply.. when i said the heli spins right i mean the whole heli spins on a curcle on the spot, the tail blades are spinning but i think it is the nose,,,, this is how your know im a newbie...
the tail blades do have ther own motor so ill have a look for the small pots. but if there is none.. is that the only way to adjust it?......
thanks for helping me mate its good to talk to someone who knows about heli..... ive still alot to learn....lol....
thanks thomas... ill let you know how i do...

[clustermarc]

Hello again,, i had a look on the receiver and i couldnt see the pots,, by pots do you means screw type things,,, im sorry 4 being abit dumb,,,lol...
anyway i looked and all i can see on the receiver is:-
- the battery cable..
- throttle cable..
- rudder cable..
- power cable..
- the two servo sockets..
- the LED light..
- the crystal..
- and a hole,, and inside the hole is a little screw type thing i think,, its very hard to see.. but i cant tell if its just another screw holding the receiver togther....lol... could this be the adjuster???
THANKYOU for helping me mate it means alot....
_____________________
Marc...

[Leebert]

Hi Marc
Yes, it could be an adjuster? If the nose goes in the direction you told it (ie stick right, nose goes right) then you are right, it won't be the connector. Unless, (stick with me here) there is a servo reverse switch on your transmitter. It might be a combination of connector and servo reverse switch if you see what I mean. Rudder is normally channel 4.

As you spool up the heli, does the tail motor go nuts almost straight away of does it build up slowly?

Also, how fast does it spin - how long does one revolution take when the heli is almost up to speed if you see what I mean.

[clustermarc]

hello leebert,, thanks for helping me mate,
first of all i just want to say sorry if my writing does not make sence some times im not good at spelling,,
yeh im sure its not the connector because when i move the stick right it turns right,,
if i start from the begining it maybe easyer 4 us both. thx again 4 helping me.
when i start up the heli and slowly push the throttle up the main rotor blades start to turn, which is fine.. and the tail blades are not moveing, but when i push the throttle a little bit more the heli nose starts to turn right, and the tail blades start to move, so i moved the rudder trim left to stoped it turning, but as soon as i move the throttle stick up a little more the heli nose starts to turn right again and the tail rudder starts moveing again aswell.

the heli nose is turning quite fast it proberly takes about 2 or 3 secondes to complete a full circle. but the more throttle i give it the faster it turns 1 or 2 secondes..
i think the tail motor is working fine because if i turn the rudder stick right the heli nose turns even faster (right)

yeh mate the controler has got dip switches on it on my controle the rudder is switch 1, but im useing a mode 2 controler...lol... my last heli was mode 2 so i thought id say the same.

THESE THINGS ARE GREAT FUN GOOD THING IVE ALOT OF SPARE TIME.....
yet again guys thankyou for all your time and help...

[Leebert]

When it's up to speed and you give it right stick (to make it spin around faster), does the tail motor speed up or slow down?

[gazza]

Sounds like the pot is out of adjustment and the tail motor is cutting in too late and not enough.

Try disconnecting the main motor from the receiver, weigh the heli down to the floor across the skids and slowly apply throttle till the tail motor just starts to spin.
Try adjusting the screw you think could be the adjuster, if the tail stops then turn it the other way till it speeds up a little.
Do all this with the rudder trim centred on the tranny

With the twister CP you have to disconnect and reconnect the battery each time an adjustment of the pot is made.

Reconnect the main motor and see if things have improved, if so then just fine tune from there. You want the heli set up so that on a smooth surface with power applied till its just light on the skids the tail holds steady

Dont forget to leave the heli a few seconds for the gyro to arm after each battery connection! Oh, and ensure you always turn the tranny on before the heli as doing the opposite can cause the symptoms you have.

[clustermarc]

im not to sure,, because ive put it away in its box for the night,, but i think it speeds up,, but i do not for sure that the tail gets noisier so im guessing it speeds up....

[gazza]

Actually, having thought about it with clockwise spinning blades the heli will naturally want to spin in the opposite rotation, so if the nose is turning right then the tail rotor is overcompensating and needs reducing.

[clustermarc]

thanks gazza, ill try that in the morning, im realy thankfull for any help i get of you guys, any help is always good help
i phoned my local model centre and they said if i take it to them on friday they will sort it out for me, but if i can do it myself i think thats better plus im abit impatient...lol...

im gonna have a look at the heli now and try to find out for sure if the little screw i see is an adjuster, but its very hard to see and i dont wont to just stick a screw driver in the hole of the receiver and start twisting just in case its not a screw and i brake some thing...

US BOYS AND OUR TOYS.... GREAT FUN.....

[Leebert]

Ok...

If it drives the nose too much to the right normally (or even when you put in left stick in) and then gets worse with right stick then does it make sense that the tail is driving too hard and needs to slow down overall?

If that's the case, I have two possible soloutions...

1. Trim down the tail blades (equally) until the problem goes away but you can still fly ok (only trim a liitle bit at a time).
2. Add in 2 or 3 rectifier diodes in series with the motor. Each diode will 'drop' the voltage to the motor by about 0.6 to 0.7 of a volt. Less volts at the motor = less drive to the tail.

Don't go chopping tail blades until you have confirmed whether the motor is driving too hard though, you don't want to "fix it" the wrong way around and make it worse!

Or the screw could fix it

[clustermarc]

hi gazza,, yeh mate thats what i fault it was, the same happond on my old heli, all i had to do then was adjust the screw then trimmer and it was fine,,

but not knowing where the adjustment screw is makes it abit hard,,,,lol
im gonna have a look now