RE: Walkera #4 Fixed Pitch Helicopter Forum  
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    • All Forums >> RC Helicopters >> Electric RC Helis >> Walkera Helis - Dragonfly, etc.. >> RE: Walkera #4 Fixed Pitch Helicopter Forum
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    RE: Walkera #4 Fixed Pitc... - 4/17/2008 7:01:24 PM   
    dknovick



    Posts: 727
    Joined: 1/19/2005
    From: Albuquerque, NM, USA
    Status: offline
    quote:

    ORIGINAL: GTX SlotCar

    The Esky & E-flite 4in1s are made for 11.1v but the DF4 4in1 isn't.

    Huh? As far as I can tell, the Walkera 4in1 and the Falcon40 4in1 are exactly the same board (I've repaired both), and I've been running a 3s lipo through my Falcon40 for a couple of months now without and problems. Ok, I did blow the main motor MOSFET, but people running with the stock NiMH battery blow that chip as well. And I've found a drop in replacement which can handle 20A (the original MOSFET can only handle 10A).


    _____________________________

    What goes up, most come down. How hard depends on you!

    (in reply to GTX SlotCar)
           Post #: 8476

    RE: Walkera #4 Fixed Pitc... - 4/17/2008 7:43:17 PM   
    GTX SlotCar



    Posts: 2070
    Joined: 10/7/2005
    From: Gorham, ME, USA
    Status: offline     		By the past respones about this, I'd say about have the people that have run 11.1v in their DF4 4in1s have fried it, and have get away with it. Some guys piggy-back mosfets.

    _____________________________

    Gary
    SuperSkids® www.super-skids.com

    (in reply to dknovick)
           Post #: 8477

    RE: Walkera #4 Fixed Pitc... - 4/17/2008 9:04:55 PM   
    dknovick



    Posts: 727
    Joined: 1/19/2005
    From: Albuquerque, NM, USA
    Status: offline
    quote:

    ORIGINAL: GTX SlotCar

    By the past respones about this, I'd say about have the people that have run 11.1v in their DF4 4in1s have fried it, and have get away with it. Some guys piggy-back mosfets.

    I agree that there's more of a chance to blow the main motor MOSFET when running 11.1V, but it shouldn't fry the rest of the board. There's a 5V low drop out voltage regulator which can handle 14 or 15V (and which mostly drives the servos), and there must be a 3.3V regulator in there somewhere (but I haven't been able to find it yet), which seems fine with 11.1V

    Just my 2cents...


    _____________________________

    What goes up, most come down. How hard depends on you!

    (in reply to GTX SlotCar)
           Post #: 8478

    RE: Walkera #4 Fixed Pitc... - 4/18/2008 1:06:51 AM   
    Crusader23



    Posts: 331
    Joined: 2/12/2008
    From: Fountain, CO, USA
    Status: offline
    quote:

    ORIGINAL: GTX SlotCar

    The Esky & E-flite 4in1s are made for 11.1v but the DF4 4in1 isn't. The E-flite motors are available with either 9 or 10T pinions (DF4 motor is 10T only, but all the motors are Mabuchi 370s). Using a 9T will give less head speed, but the motor runs cooler and won't won't draw as many amps through the 4in1. You can use 11.1v with your setup. If it's too much for you to handle, use the motor with the 9T pinion. It'll tame it down a little.


    Thanks. I think i'll invest on an 11.1V battery for my #4. I'm also adding a HH gyro (from my B400) to my #4. It'll be like a CPP, but with fixed pitch.

    _____________________________

    <2 more months and I''ll be home

    (in reply to GTX SlotCar)
           Post #: 8479

    RE: Walkera 4 Fixed Pitc... - 4/18/2008 9:42:58 PM   
    brettw


     

    Posts: 257
    Joined: 12/30/2005
    From: Sydney, AUSTRALIA
    Status: offline     		Hi Guys,

    a little off topic however I need some feedback on the site good or bad

    http://www.eastcoasthobbies.com.au

    Prices are a little bit over the place at the moment.

    Thanks

    Brett

    (in reply to Crusader23)
           Post #: 8480

    RE: Walkera 4 Fixed Pitc... - 4/19/2008 4:31:47 AM   
    toothpick1052


     

    Posts: 6
    Joined: 1/23/2008
    From: jacksonville, FL, USA
    Status: offline     		i have not been able to find much about separates. im wondering if i can take a blade cp's 4-in1 tx and rx and use all this, instead of walkera's electronics. right now, i cannot figure out how to get the blades electronics to not move all the cervos at once. its for a collective pitch heli, and i want to know if it will work on a fixed pitch.

    (in reply to brettw)
           Post #: 8481

    RE: Walkera 4 Fixed Pitc... - 4/19/2008 5:09:34 PM   
    GTX SlotCar



    Posts: 2070
    Joined: 10/7/2005
    From: Gorham, ME, USA
    Status: offline     		Brett, it looks great.



    _____________________________

    Gary
    SuperSkids® www.super-skids.com

    (in reply to brettw)
           Post #: 8482

    RE: Walkera 4 Fixed Pitc... - 4/19/2008 5:19:40 PM   
    Tall Paul



    Posts: 4655
    Joined: 6/23/2002
    From: Palmdale, CA, USA
    Status: offline     		The Blade CP transmitter can't work with a fixed pitch heli.
    The collective coupling is built into the software in the transmitter.
    You can use the Blade CP 4-in-1 and another transmitter.. Futaba or Hitec with a fixed pitch heli.

    _____________________________

    Sparky Paul
    http://www.angelfire.com/indie/aerostuff

    (in reply to GTX SlotCar)
           Post #: 8483

    RE: Walkera 4 Fixed Pitc... - 4/19/2008 5:24:44 PM   
    jtspin


     

    Posts: 614
    Joined: 5/3/2006
    From: Reno, NV, USA
    Status: offline
    quote:

    ORIGINAL: toothpick1052

    i have not been able to find much about separates. im wondering if i can take a blade cp's 4-in1 tx and rx and use all this, instead of walkera's electronics. right now, i cannot figure out how to get the blades electronics to not move all the cervos at once. its for a collective pitch heli, and i want to know if it will work on a fixed pitch.


    The problem is that the Blade CP Tx does CCPM mixing. See if there are DIP switches under the batteries. If so, I believe the CCPM mixing can be disabled with certain switch settings.

    -JT

    (in reply to toothpick1052)
           Post #: 8484

    RE: Walkera 4 Fixed Pitc... - 4/20/2008 9:16:58 PM   
    My Name Is Brad



    Posts: 597
    Joined: 2/25/2006
    From: Hudsonville , MI, USA
    Status: offline     		Here we are. Got some pics of this awesome canopy. They will be for sale by a guy on youtube. His name is tbronson01.
    http://www.youtube.com/user/tbronson01

    He is trying to start selling them and I dont think he will have much of a problem. They are awesome canopys and are lightweight fiberglass. Here are some pics.










    Also, I am in need of a new set of the stock landing gear. Does anyone want to let one go for cheap? thanks!

    _____________________________

    Duratrax Raze w/ Axial .28, Proline Badlands

    (in reply to jtspin)
           Post #: 8485

    RE: Walkera 4 Fixed Pitc... - 4/20/2008 10:31:11 PM   
    clp.eng


     

    Posts: 40
    Joined: 4/20/2008
    From: Lombard, IL, USA
    Status: offline     		Hi all!

    I'm new to helis & this forum.

    I've had the Walkera 4-1 2 days. I could use a little help already I'm afraid. It "got away" from me & hit a tabl