Walkera Dragonfly 40

Walkera Dragonfly 40 (Full Version)

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jahshappybus -> Walkera Dragonfly 40 (1/12/2006 9:29:15 PM)
Thought I would start a thread for all the #40 flyers.[8D] To start use of heres a video of my'n only the tail rotor is fudged[:D] http://media.putfile.com/walkera-dragonfly-40-with-nacked-tail-rotor Hope you enjoy and feel free to poste anything on the Dragonfly 40 on this thread.

libertycat -> RE: Walkera Dragonfly 40 (1/12/2006 10:14:29 PM)
I also have a DF40, and loving it !!! Have you seen it on Walkera.com ?? it is just for sale on ebay for now ! A great choice ! see it !

jahshappybus -> RE: Walkera Dragonfly 40 (1/12/2006 10:52:24 PM)
Yer its fantastic they'r a bit better than me at flying the damn thing than me though.[:o] Its my 1st chop so prob should of gone for something a little more afordable. However reading all the postes here it seems the more expencive it is the easyer it is to fly [&:] Still im having a hell of a time setting it up as soon as the swash plate is level i bin the thing and bent the head [:(] Its extreamy strong, I havn't broken anything yet apart from blades that is totaly understandable. Unly complaint is that the charger has no auto shut off so you could blow a battery up and burn the house down [&:]

libertycat -> RE: Walkera Dragonfly 40 (1/12/2006 11:16:41 PM)
sure ! it was my first one, and always the more interesting one for me ! I know walkera brand very well, I retailing them all, and this one is like special anyway, it is my only real feeling of CCPM one. Also, take care, often users are crashing and benting the HM040-040 part, and do not see it at first.. after they wonder why not flying so well... this part is often bent, the HM040-040 is a must to have in stock, and bothering to change a bit at start of learning, it bent nearly at each strong crash.; take care about it. it is inside, not possible to see it directly, it is in head rotor, between blades, but if you take the 2 step of main blades and feel they move arround together a bit, need to change this part.. it makes crazy tracking and vibras

jahshappybus -> RE: Walkera Dragonfly 40 (1/12/2006 11:26:14 PM)
yer i've just been bending it back [&:] It has been geting worse so I will replace it soon. blades are balanced at 1st but as you wack the power on they go of line by about 2-3mm so causing it to vibrate. also my elevator servo is twitching that won't be helping matters. Oh and Im prety sure the tail motor is burnt out. It only turns slowly after I give it a kick start otherwise it dose nothing.

libertycat -> RE: Walkera Dragonfly 40 (1/12/2006 11:41:27 PM)
yes, sure it is dead... so small motors need to run so fast in charge, there is nothing magic.. need to change sometimes.. Also, I tryed several ones, but never direct drive... I have a direct drive kit, maybe I'll try when I'll have time.. I'll see. . .

jahshappybus -> RE: Walkera Dragonfly 40 (1/13/2006 10:54:17 PM)
cheers for the imput. I purchased a new tail motor for £1.99 on ebay so not too bad.

libertycat -> RE: Walkera Dragonfly 40 (1/13/2006 10:58:16 PM)
where you found this price ? is god price !! take care, I often had customers that were disapointed of cheap motors that were dying fast..; but I not mean that yoour deal is wrong !! say us the matter if working well and how long . regards !

jahshappybus -> RE: Walkera Dragonfly 40 (3/31/2006 10:24:51 PM)
Hi long time since I posted last sorry. I have fixed tail rotor and it is a much stronger feeling motor. I have also been hitting the hirobo parts bin hard. I have a brushless motor, carbon(ish) blades and 2200 li-po. However I am bloody confused as to how it all wires together. I have the three actuator loose wires pluged into the motor, the block connector is in the battery. but the plug that goes into the recever is the one that has got me. On the #36 everyone seems to put it in the 3rd slot down and it dose beep at me when I do this but with the obviouse reaction of one of the pitch survos going 2 sleep as it is normaly ocupied by sed survo. If I plug it into the Idle bottom 2 slots it dose bugger all apart from power everything else but with nothing from the motor. Please help!

jahshappybus -> RE: Walkera Dragonfly 40 (4/3/2006 8:47:49 PM)
update. It still won't work but I can give more information that may help someone help me. The tail motor makes a screeching noise with no movement as the power is laid on when the brushless main motor is atached through one of the idle slots on the recever. If I disconect the brushless main motor and reatach the brushed motor to the 'motor out' wire they both work fine. If I connect the speed controler to one of the pitch outputs of the recever everything works fine (apart from the disconnected survo obviously) I hope someone can help

soneebee -> RE: Walkera Dragonfly 40 (4/29/2006 7:29:07 PM)
hey jahshappybus any update if you got the brushless to work on the DF40. I guess i see what you are saying and it seems that the 3-1 RX of the DF40 does occupy all the first 3 slots of the ESC for the 3 servos slots 4-6 have nothing in it. but if you plugged the ESC on the 3rd slot it will engage the throttle for th brushless but you will be lacking one servo. I guess you have to do some modification on the ESC. I think I have seen on one of the posts what he did to mahe the brushless set-up to work on the DF40, he modified the ESC board shorting something to get it to work...

jahshappybus -> RE: Walkera Dragonfly 40 (5/24/2006 11:19:34 PM)
Still no joy I have this pic that may help http://image.rcuniverse.com/forum/upfiles/180571/Bz77786.jpg the little resistor (bottom left edge of bottom board in front of micro chip) is disconnected from the top board. still won't work however with the brushed motor I have had some flying success and it is a lot of fun!

soneebee -> RE: Walkera Dragonfly 40 (5/25/2006 1:23:46 AM)
I have been trying to hover my DF40 for a couple of months now but still it is very hard to make it steady. with all the adjustments I made mechanically it is still not that easy. I guess the design of the DF40 is really that hard to fly.. I think most of the problems I encontered was the design of the head assembly.. the hiller head is not that responsive and the plastic head design gets alot of slack I think they have to make an alum head for this heli to get it more stable at hovering.. have it all documented in the other forum.. heres a link if you want to look at it.. there are also some bad video i took were my DF40 just skips and jumps like a bunny rabbit. http://tee.homanga.com/forum/index.php?topic=49.0

jahshappybus -> RE: Walkera Dragonfly 40 (6/28/2006 10:31:23 PM)
Yer I found that. I let my mate who has a honey bee and he just loughed at my df :-( Update on the upgrade I have done it!!!!! well sort of I noticed the resistor running across the micro-chip on the pic isn't present on the board so I soldered one on and it works. It runs fron the 2nd leg on the left of the chip to the left post of the 4th plug as you see it on the pic. Unfortunatly I don't own a pin soldering iron and as a result one of my survos stoped working because of short circuit. I fixed this easily enough but confusingly my tail motor has packed up again. back to the soldering I go :-/

soneebee -> RE: Walkera Dragonfly 40 (6/29/2006 2:35:56 PM)
what is the performance of the brushless motor on the DF40.. how doe ist fly now? is it any better? I am still not able to fly my DF40 as stable as my other heli but it seems to be promissing.. I just have to do some more adjustments I guess.. the mechanics on the hiller is not good the response is very slow.. the cyclic is unpredicatble.. I think there is a problem with the DF40 head that is why I am having alot of unwnated movements I'll check on this when i get the time . post the pics on the upgrade you made..

libertycat -> RE: Walkera Dragonfly 40 (6/29/2006 2:49:39 PM)
the standard motor is quite ok even for flying strongly. brushless is not so need to manage to fly I mean.. it just makes even better. About your DF40, check the part shaft HM040-040, it is often that users are not seing that this shaft is bent and as a result all is going unstable and not accurate.. if not, check all other things. the head of the DF40, is quite simply and also quite good (for the level of price it is) be sure a good setting makes the DF40 a gret heli !! Regards !

soneebee -> RE: Walkera Dragonfly 40 (6/30/2006 11:15:13 AM)
I have tried to hover my DF40 the other day. It seem to be very unstable.. I have corrected the pitch angle and have done adjusments on the PLT/PZT knobs but still the problem is still there... The main problem that i have is the lift it generates It moves collective correctly but the amount of lift is very unstable.. It will lift a couple of inches without me moving the throttle and it wil also drop a couple of inches without me doing any movement on the throttle stick.. I think my main porblme is the mechanicals on the head.. it seems to be binding or too loose am not sure cause both of this affects the lift and the angle of attack.. I will try to do some adjustment by this week end.. I think I have to look for a good CNC head for the 40... it is this plastic heads that create too bad slack and very sloppy.

jahshappybus -> RE: Walkera Dragonfly 40 (7/4/2006 12:30:31 AM)
Due to the lack of tail motor mine can't be flown atm but powering the thing up on the ground it sounds f**king lary with a lot more power (not that the old one was bad as mine flew prety ok) As for hovering urs you will prob find its just the helly is thick! If you want to get the thing up just do it don't fanny about on the floor coz as your said it is very jumpy just boot it up in the air and get it stedy so you have plenty of air space to play with. Ps don't blaim me if you bin it from a grate hight I didn't say it was without risk :-p

soneebee -> RE: Walkera Dragonfly 40 (7/4/2006 1:36:51 AM)
I am not sure why this thing is bumpy on the ground... it seem to be very unstable in hovering.. it can lift okay but i cannot calculate the lift just by simply pushing the throttle up.. it just boost up and does not stay there... i have seen the problem when i checked it the last weekend.. it seem to be the problem is the pitch of the blades.. the servos work but i think there is some binding ,. cause i got the pitch at first it was 9° max then i moved the throttle stick full down and moved it full up again and the pitch is now 10.5°.. there is some binding on the head causing irregular pithching.. the plastic head seems to be in accurate.. Ill try to fis it.. maybe replace the whole head assembly to eliminate the binding...

rctoyhouse -> RE: Walkera Dragonfly 40 (7/10/2006 3:59:18 AM)
I'm assuming you guys are referring to walkera 40, not the walkera 40 v2? http://site.nitroplanes.com/dragonfly40a.jpg Anyone have reviews for walkera 40 v2?

serhathakan -> RE: Walkera Dragonfly 40 (7/13/2006 12:52:06 AM)
Hi. I have 2 helicopters. 37 and 40. I upgraded 37 with brushless motor and lipo battery. As you know Stock 37 is coming with brushed actiyator for 400 SD. After upgrade i have a spare 20 A brushed actiyator and i want to use it on 40. How can i pluge it to receiver? Thank you

soneebee -> RE: Walkera Dragonfly 40 (7/20/2006 1:01:08 PM)
I have made som adjustments on the mechanical lastnight and saw that there was a lot of binding on the head which caused so much slack. so I hjave fixed that.. made all the adjustment on tracking link corrections and electronic setup.. Well it is working now.. my DF40 is no very stable compared to my last flight a couple of moths ago.. man this heli rocks.. I find it stable enough to be like my Df60.. the only difference is the response time.. it seem to be very slow in responding to stick commands.. this is because of the 180° cyclic setup.. If you can add two more links to make it into a bell hiller then there is a good possibility that it will increase the sensitivity of the collective responses.... i have taken a short video to show the stability of the DF40.. man this heli rocks.. http://www.youtube.com/watch?v=880YzNcCyB8

soneebee -> RE: Walkera Dragonfly 40 (7/27/2006 4:23:52 AM)
Since I had another set of Brushless laying around my tool box why not try it on the DF40.. since alot of the DF22E guys have tried the brushless why not try it on a DF40... I made the same configuration as that of the DF22E.. plugging the ESC on the 4th slot of the RX and removing the RED supply line for the BEC not needed actually cause the RX is powered but the battery too so just made a Y connection on the ESC and the RX and both are supplied by the battery.. The motor was good and powerful since I was using it before on my DF60.. had made some settings on the ESC to fit the DF40..for this heli the brake should be off... cause if its on the motor will stop instanty and will make the heli spin instead of the blades.. funny but its true... I have tried flying.. well its performance is better it is stable because of the good headspeed from the motor.. the rudder motor had no problem compensating with the brushless... just have to adjust a little the PZT/PIT settings to match the amount of headspeed the motor is giving out.. Since the DF40 is very light weight and the motor has good power to make it fly it can hop up in the air like a leap frog.. or gently fly higher and higher.. moves great It is a good advise to go brushless on this heli.. it turns it into a competitive one.. better than the BladeCP [img]http://i66.photobucket.com/albums/h275/soneebee/DSC02298.jpg[/img] [img]http://i66.photobucket.com/albums/h275/soneebee/DSC02301.jpg[/img] [img]http://i66.photobucket.com/albums/h275/soneebee/DSC02300.jpg[/img] thanks to the guys of the 22E thread for the brushless set-up .. works like a charm on the Df40

PeterE -> RE: Walkera Dragonfly 40 (1/12/2007 7:53:26 PM)
I am a new person to this Remote Control thing. I was just given a brand new Walkera #40 for Xmas and I am getting a bit annoyed with the poor instructions supplied with the Helicopter. I have charged the battery for 4 hours. I have a green light on the charger (though there is a red one as well but I don't know what that is for). After I connect the battery and turn on the remote control, the rotors do not turn but the blades pitch so there is power in the battery. Any advice you can offer me to get the Helicopter powering up is gratefully accepted. There was a plastic thing with 2 elastic bands in a seperate bag. The plastic thing is about 2-3 inches long, all in black and with an attachment on one end. Many thanks PeterE

haymorer -> RE: Walkera Dragonfly 40 (3/8/2007 5:06:41 PM)
I have a Dragonfly 40 but no tail motor. The rotor is energized via a shaft that engages the main gear. I'm experiencing a problem of the tail spinning clockwise. The rotor is turning but I have no control. Trim does not work. Any ideas on what the problem might be? Servo???

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