Need help to setup DragonFly

[HotDogBun]

Dear All,
I just got a 2nd GWS DF to learn setup of fix-pitch heli.
1st problem encountered
- when servos pluged into chn1 & 2, they have no reponse when i move the sticks.

What can be the reason? Both servos are working fine, rx is fine.

Tks.

[lampard]

Dear All,
I just got a 2nd GWS DF to learn setup of fix-pitch heli.
1st problem encountered
- when servos pluged into chn1 & 2, they have no reponse when i move the sticks.

What can be the reason? Both servos are working fine, rx is fine.

Tks.

maybe your servo plug is plug the other way round.. i've tried doing it and the servo never respond. but after the switchover, then it works

[HotDogBun]

Ok got servo response liaoz.
Gyro working too.
Heli can lift abit when i full trottle for a sec so blades are ok, only the forward and backwards pitch is reverse.
Only problem now is I dont seem to have rudder control.
The tail motor will spin upon sudden change in heading, but I cant seem to turn the plane using rudder.
Just curious, can I use hitec Micro O5S 5chn rx with Optic 6? Rx only has Chn1,2,3,4 & 6 but no 5. On optic6 chn5 is Gyro sensitivity and Chn6 is Pitch( or collective ) or swash servo3 which I guess I dont have.

[lampard]

Ok got servo response liaoz.
Gyro working too.
Heli can lift abit when i full trottle for a sec so blades are ok, only the forward and backwards pitch is reverse.
Only problem now is I dont seem to have rudder control.
The tail motor will spin upon sudden change in heading, but I cant seem to turn the plane using rudder.
Just curious, can I use hitec Micro O5S 5chn rx with Optic 6? Rx only has Chn1,2,3,4 & 6 but no 5. On optic6 chn5 is Gyro sensitivity and Chn6 is Pitch( or collective ) or swash servo3 which I guess I dont have.

wait, for the gyro, are you using the pg03? or gy240?

this heli is a fixed pitch so it dont require ch6... for the gyro, im not sure if pg03 got gyro gain or not but gy240 has.

for the rx, never heard of that rx but you may wanna try this rx from jethobby: airtecnic(http://www.jethobby.com.sg/cgi-bin/e...6&cid=11&idx=1)
confirm will work with optic6.

for your tail problem:
your tail motor is spinning or not? if it spins, means your connector is connect the other way round. solution: do the same thing as the servo connector. if it does not spin at all, check for the wiring, maybe the wiring are loose.

this is what i can help you at the moment cause i dont have this heli but instead a honeybee fixed pitch...

[HotDogBun]

Tks.
For the tail motor, it does counter the blades' thrust to keep a straight heading but seems like its not power enough to do so, so the heli will spin slightly. I cant seem to turn the heli around though, by using the tail motor.

[HotDogBun]

Ops, PG03 sorry.

[lampard]

Tks.
For the tail motor, it does counter the blades' thrust to keep a straight heading but seems like its not power enough to do so, so the heli will spin slightly. I cant seem to turn the heli around though, by using the tail motor.

hmm...weird lehh..maybe you wanna try adjust the gyro, if still cant, change the tail propeller, find the one that is like got more pitch so will be more power to counter the tail abit...

[HotDogBun]

Oh, ok roger.
Think tmr I bring to PFW before night class and get those old birds to take a look see whats wrong with it. Hmmm maybe the rx not suitable....

[lampard]

Oh, ok roger.
Think tmr I bring to PFW before night class and get those old birds to take a look see whats wrong with it. Hmmm maybe the rx not suitable....

lol...if your servo can work, why not the tail right? hehe.. ok.. just bring to PFW.

[HotDogBun]

Straight.
Chn1 for left/right pitch OK
Chn2 for forward/backward pitch OK
Chn3 for trottle OK
Chn4 for Gyro - tail motor keep spining at full spin
Chn5 for Gyro - nothing happens to tail motor even when I turn the heli
Chn6 for Gyro - the tail motor moves when I turn heli in stationary position.

Looks like now left the tail motor to rectify bfore can go any further. Heli setup quite fun

[detach8]

bro ch 5 + 6 are redundant on a FP. ch 5 is for remote gain, ch 6 is for pitch (used in collective heli, or part of a CCPM system)

if you use a pg-03 it is normal for the tail to keep spinning unless you have a programmable tx with rudder to throttle mixing. mixing is a little more complicated and best to bring to a ff to get help.

so if you crash remember to hold down left rudder to prevent your tail from spinning and breaking the prop.

[HotDogBun]

Thanks! Makes sense. The harder the main blade spins, the more the spin so the tail motor should spin harder to counter.
Sounds simple now. Ok thanks for the tip.
Roughly get it. Basically got to mix the 2 motors together.
And if they dont match well to keep a constant heading, then I'l just increase the ratio to make tail prop spin faster.

[detach8]

hehe hdb it sounds simple but even myself can take hours to set r->t mixing correctly. usually i don't really bother with mixing i just have to ensure the pg03 is centered properly (i.e. you will see red+green led at neutral rudder input) and it should keep your heading reasonably well, although may not be 100%. for fp helis it is quite normal that you have to compensate for the drift in the controls. takes a while, but spend more time on the sim (= free)

[detach8]

lastly this is a common mistake for people new to helis, you may already know, just for a tip, dont move the heli when you plug in the power until your tail motor spins up, i.e. allow the gyro to find the neutral point and initialize. if you don't the gyro may act weird.

[HotDogBun]

Much thanks to Tony aka Ghostfit, Ah Tan, Chekgu and Leon for lending a helping hand in making my GWS DF to be trimed enough for hover. Needs more triming but thanks to them I have roughly some idea on the trimming.

The previous rudder problem was because we were adjusting the gain on gyro, which was wrong. There was another screw for adjusting the heading or direction....

Also learnt that need to arm the tail motor before flight. Learnt so much today.