RE: Walkera #4 Fixed Pitch Helicopter Forum

RE: Walkera #4 Fixed Pitch Helicopter Forum
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RE: Walkera #4 Fixed Pitch Helicopter Forum - 5/18/2005 5:10:42 PM

Posts: 1882
Joined: 11/20/2003
From: Curitiba, Parana, BRAZIL
Status: offline

Found this info about the "giroscopic instability" and helped a lot but I didn´t get rid of it already....

http://www.rcuniverse.com/forum/Walkera_DragonFly_v2_4ch_shaking/m_2971835/tm.htm

one thing that works is during the initial fase of the wobbling is change the power setting until it stops shaking... (like giving a kick to stop it, lol). tonight I even had a little adrenaline rush while doing some fast pirouettes with it, with not much clearance at the living
room.. heli still in one piece!

_____________________________

E pluribus unum

(in reply to erbroens)

RE: Walkera #4 Fixed Pitch Helicopter Forum - 5/22/2005 9:28:00 PM

queque

Posts: 1
Joined: 5/22/2005
From: , SOUTH AFRICA
Status: offline

Hi. My son was given a gift of a Walkera #4. and we need soon help.
1. The tail rotor is broken
2. There was no software to learn how to fly
3. We live in South Africa and there is no agent for spares here

Please may someone forward some help
Regards Dave

(in reply to andyace)

RE: Walkera #4 Fixed Pitch Helicopter Forum - 5/23/2005 11:55:40 AM

oops

Posts: 664
Joined: 2/26/2005
From: Perth, AUSTRALIA
Status: offline

Hi Queque,

1. You can buy new tailrotors on Ebay. They are cheap. You can also glue them. You can also carve one out of thin balsa... Or even probably very thin Aluminium...
Or even just bend some plastic. They are nothing complex. If you are remote, I'd suggest working out a way to make new ones....

2. Download FMS (Flight Sim) and PPJOY from the Internet. The Walkera 4 pinouts are also mentioned in a post on this forum. Both apps are free for non-commercial use.

3. Buy difficult to replace stuff from Ebay. Buy some 2mm carbon-rod because you can make most repairs with that. Get creative. I glued mine back together with CA until it went in hard and snapped in half... It would still be repairable, but since I have a spare chassis...

Regards
David

(in reply to queque)

RE: Walkera #4 Fixed Pitch Helicopter Forum - 5/23/2005 5:15:17 PM

Posts: 38
Joined: 5/23/2005
From: INDIANAPOLIS, IN, USA
Status: offline

I need to get parts for my # 4 chopper. this is my first one and I know I will need a lot. first I have a burned up tail motor thats needs replaced and I wan't to upgrade the battery. Where should I go?

(in reply to andyace)

RE: Walkera #4 Fixed Pitch Helicopter Forum - 5/23/2005 5:22:50 PM

Posts: 1882
Joined: 11/20/2003
From: Curitiba, Parana, BRAZIL
Status: offline

Most repairs on the walkera 4 can be done as previously mentioned with CA glue.. if CF rod is not available, you could use 2/56 steel pushrod. (I used it on the flybar,after a crash) but if you couldn´t found a exotic helicopter part you can mail order it from most hobby shops.

I ordered some time ago (for another helicopter I have) in this two with good results:

http://www.modelhelicopters.co.uk/acatalog/m_index.htm

http://www.centuryheli.com/index.html

BR, Enrique

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E pluribus unum

(in reply to queque)

RE: Walkera #4 Fixed Pitch Helicopter Forum - 5/27/2005 4:21:50 AM

art_v

Posts: 1
Joined: 5/26/2005
From: , THAILAND
Status: offline

All, I'm new to the site as well as the heli. I've couple of questions that would be very appreciated if someone could help answer:

1. What the capacity they put on the tail motor is for?
2. If I need to replace it, what capacity I should be using?
3. I've just replaced the tail motor. It worked but the tail keeps shaking in flight (I can tell from the noise that the tail motor isn't running at a consistent speed) How would I fix this?

Thanks, Art.

< Message edited by art_v -- 5/27/2005 4:30:41 AM >

(in reply to erbroens)

RE: Walkera #4 Fixed Pitch Helicopter Forum - 5/28/2005 4:04:29 PM

Posts: 4
Joined: 5/2/2005
From: Ballarat, AUSTRALIA
Status: offline

Hi there, I have had my heli for about a month now and have enjoyed many a successfull flights. I was wondering if mazakari could please tell me where he bought his wooden main blades from. I have broken a few sets of the plastic ones and now I have a set of replacement ones that just won't lift the heli more than a foot off the ground. I have been looking at some carbon fibre ones on heli-hoby.com but saw your ones and thought they might be cheaper. Thanks for this forum, good to hear that I am not the only one to have some problems with the heli. Happy flying. Greggsy

(in reply to andyace)

RE: Walkera #4 Fixed Pitch Helicopter Forum - 5/29/2005 6:41:51 PM

Posts: 97
Joined: 2/25/2005
From: Norwich, UNITED KINGDOM
Status: offline

Hi Greggsy,

The blades are Like90 blades. I sourced mine from the UK but if you got to Like90 they offer a good shipping service worldwide.
Although the blades are made of wood they can take a real hammering - a lot stronger than the stock plastic ones. They generate slightly less lift as well so you have an increased headspeed, which in turn gives you better stability.
If you get the blades order the 11T pinion as well, just because of the higher headspeed required.

Hope this helps,

Jon

(in reply to greggsy2000)

RE: Walkera #4 Fixed Pitch Helicopter Forum - 5/29/2005 6:44:50 PM

Posts: 97
Joined: 2/25/2005
From: Norwich, UNITED KINGDOM
Status: offline

Greggsy, The link here is the blades you need. Just under $23 USD. Not bad considering I paid nearly £20 in the UK!!!!!!
Oh, and if you don't want to make one, chuck a head stiffener in as well.

Jon

< Message edited by mazakari -- 5/29/2005 6:46:23 PM >

(in reply to mazakari)

RE: Walkera #4 Fixed Pitch Helicopter Forum - 5/30/2005 2:43:02 AM

Posts: 140
Joined: 5/29/2005
From: , USA
Status: offline

Guys, I have been running a sister thread about the Walkera DragonFly #4 fixed pitch helicopter over here: http://runryder.com/helicopter/t155963p1/ Let me know if you guys want to start pooling our experiences to debug/troubleshoot/fly better/upgrade this little heli; that is, a sort of knowledge base. That is what I have been trying to do at runryder. I am now flying this heli with a full "separates" setup.

(in reply to mazakari)

RE: Walkera #4 Fixed Pitch Helicopter Forum - 5/30/2005 12:41:09 PM

Posts: 97
Joined: 2/25/2005
From: Norwich, UNITED KINGDOM
Status: offline

dragon no fly,

I have started a thread here. I was going to double the thread up on this site but its size got away from me a little. They are a good bunch of people with a lot of knowledge.

Beware - It's one large thread so you may need a coffee handy.

< Message edited by mazakari -- 5/30/2005 12:43:20 PM >

(in reply to dragon_no_fly)

RE: Walkera #4 Fixed Pitch Helicopter Forum - 5/30/2005 3:56:00 PM

Posts: 4
Joined: 5/2/2005
From: Ballarat, AUSTRALIA
Status: offline

Thanks Jon, I've ordered some from another website that should be arriving shortly. They are Carbon fibre ones. I'll also check out the ones that you have as well. as it would be good to try a few different types to see what the performance difference is. Are you running everything else in you heli stock. eg motor, electrics etc???? if not could you tell me a bit about it. I've always thought going brushless would be good but don't have any clue of what to get or how to set it up?
Thanks again. Greggsy

(in reply to dragon_no_fly)