RE: Walkera Dragonfly #36  
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    • All Forums >> RC Helicopters >> Electric RC Helis >> Walkera Helis - Dragonfly, etc.. >> RE: Walkera Dragonfly #36
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    RE: Walkera Dragonfly #36 - 4/18/2008 3:26:26 AM   
    babyhuey



    Posts: 525
    Joined: 9/3/2007
    From: St. James, MO, USA
    Status: offline     		I don't know what's wrong with this forum but I answered Chop last night but my post isn't here.

    Anyway I am afraid of the foamies as I am running a pretty high headspeed and they have a history of exploding! The Walkera fiberglass ones have no airfoil at all and generally suck.They also tend to explode!
    I went ahead and ordered the CFs from Hobbycity and I'll let you know how they are when I get them. I got excited when I checked out as they showed shipping from the US but they wound up coming from China.

    _____________________________

    Tail motors? We don''t need no stinking tail Motors. Walkera 36, Comet , GMP Cobra 50, Kalt Baron Whisper, Koyosho Caliber

    (in reply to Chophop)
           Post #: 10926

    RE: Walkera Dragonfly #36 - 4/18/2008 5:10:30 AM   
    Chophop


     

    Posts: 1773
    Joined: 7/13/2006
    From: Greenup, KY, USA
    Status: offline     		BH,
    I just measured my fwd flight current draw using DF36 blades cut to 245mm on my CP2-BT. 743mah in 9 minutes. That comes out to about 83 ma per minute at 2100 - 2200 rpm. 450g AUW and driving a belt tail. Not bad huh ? You should see it out climb my MX400 and DF36.
    I may try some work on these blades. This is real, I am not just blowing phosphors or twisting crystals at you.

    Gimme some time and I'll have that heli generating power.

    CH

    _____________________________

    No stupid comments for now.

    (in reply to Chophop)
           Post #: 10927

    RE: Walkera Dragonfly 36 - 4/18/2008 6:58:30 PM   
    Rollin Thunder



    Posts: 1401
    Joined: 2/7/2006
    From: New Lexington, OH, USA
    Status: offline     		Chop

    Sorry about the "mishap". From your pic it doesnt look like you broke the skin on the lipo. I wouldn't be surprised if it's just fine.

    _____________________________

    Take a method and try it. If it fails, admit it frankly, and try another. But by all means, try something.
    F.D.R.

    (in reply to Chophop)
           Post #: 10928

    RE: Walkera Dragonfly 36 - 4/19/2008 2:11:25 AM   
    babyhuey



    Posts: 525
    Joined: 9/3/2007
    From: St. James, MO, USA
    Status: offline     		Chop,
    THat's impressive. Are you flying indoors or is the wind that calm there? My 400s are grounded and the 450 has been flown barely because of the wind. I have excellerated the Cobra prodject and am almost ready to break in the engine! If it can't cope with the wind I am giving up on helis!

    _____________________________

    Tail motors? We don''t need no stinking tail Motors. Walkera 36, Comet , GMP Cobra 50, Kalt Baron Whisper, Koyosho Caliber

    (in reply to Rollin Thunder)
           Post #: 10929

    RE: Walkera Dragonfly 36 - 4/19/2008 4:04:52 AM   
    Chophop


     

    Posts: 1773
    Joined: 7/13/2006
    From: Greenup, KY, USA
    Status: offline     		The wind is up and down, I charge up and often as soon as I put the heli on the pad, the wind starts up. I like that little CP2-BT. the _BT is what I appended to indicate Belt Tail mod. I like it a lot and it's a nice slow flier that can take tight turns be slow and truely gentle or go wild. Personally, this little chuahua ain't no 400 in stability and seems toyish but it flies nice and can run on $12 1300 mah 3 cells. It will float around in a gentle breeze, but the CP head is a big help.
    It's my warmup heli. BTW, I guess my crash may have been from tree pollen making me disoriented. I have an awful allergy. As soon as I step outside, my eye water and I get dizzy, then start sneezing. I hadn't been sick from anything for about 3 years.

    Guess what ? Blade 400 main gears can be modded to fit the 36. You may as well get the one without the one-way because it has to be reversed, and you don't want to press em in and out much. A sloppy press can make it wobble.

    Gotta go blow.

    CH

    _____________________________

    No stupid comments for now.

    (in reply to babyhuey)
           Post #: 10930

    RE: Walkera Dragonfly 36 - 4/19/2008 4:18:34 AM   
    Chophop


     

    Posts: 1773
    Joined: 7/13/2006
    From: Greenup, KY, USA
    Status: offline     		RT,
    I tried discharging 6 1/2 amps into a resistor bank and the battery got slightly warm for the first time. I intend to give it some testing. I'd hate to loose a heli to a bad battery or endanger someone. Only the external shrink wrap got split, but the battery looks worse in the real world than in the photo.

    CH

    _____________________________

    No stupid comments for now.

    (in reply to Chophop)
           Post #: 10931

    RE: Walkera Dragonfly 36 - 4/20/2008 2:51:36 AM   
    babyhuey



    Posts: 525
    Joined: 9/3/2007
    From: St. James, MO, USA
    Status: offline     		I hope that the new blades help out as I finally got to fly through an entire battery in my 36 and it just yoyoed the whole time.
    It was good to get to fly though!

    _____________________________

    Tail motors? We don''t need no stinking tail Motors. Walkera 36, Comet , GMP Cobra 50, Kalt Baron Whisper, Koyosho Caliber

    (in reply to Chophop)
           Post #: 10932

    RE: Walkera Dragonfly 36 - 4/20/2008 11:58:05 AM   
    Chophop


     

    Posts: 1773
    Joined: 7/13/2006
    From: Greenup, KY, USA
    Status: offline     		Now here is a hot topic: Scorpion Motors. I got mine in Saturday but was only able to test one battery. Usually when I get back in, I will have 3.785v/cell, now 3.86v/cell. That is about what Innov8tive Designs said to expect, a ~25% increase in efficiency. I also got 2700 rpm on first spinup with the same throttle settings, I was at 2350 before, I had to drop from 95% power to 74% . But I also went from 3000 to 3125kv.
    And when I got back the motor was only slightly WARM not hot with 66* OAT. OAT = Outside Air Temp.
    The motor is the Scorpion HK2208-28. Weighed 41g with the connector installed. $32 + $5 s&h. That's probably my brand now. The windings are glued in with something to keep them from vibrating and chafing the insulation.

    http://www.innov8tivedesigns.com/product_info.php?cPath=21_25_49&products_id=152

    CH

    < Message edited by Chophop -- 4/20/2008 12:21:23 PM >

    _____________________________

    No stupid comments for now.

    (in reply to babyhuey)
           Post #: 10933

    RE: Walkera Dragonfly 36 - 4/20/2008 1:22:48 PM   
    babyhuey



    Posts: 525
    Joined: 9/3/2007
    From: St. James, MO, USA
    Status: offline     		Chop,

    Do you glue the stock blades somewhere or something to keep them from comming apart?

    Also the Skorpion motors are the hot ticket with the Trex guys now. The Comet came with what looks like a JGF 400 but what ever it is it's no good and I was thinking of trying the Skorpion -6 motor. Is the one you have smaller?

    _____________________________

    Tail motors? We don''t need no stinking tail Motors. Walkera 36, Comet , GMP Cobra 50, Kalt Baron Whisper, Koyosho Caliber

    (in reply to Chophop)
           Post #: 10934

    RE: Walkera Dragonfly 36 - 4/20/2008 7:00:15 PM