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Helicopter PHOTO Gallery and Discussion: Post Yours

Discussion in 'Helicopters' started by w00d, Oct 17, 2011.

  1. w00d

    w00d Registered

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    Just had a thought {Smell the w00d burning} ... Maybe the Tail Belt is robbing some of the power I need to Lift-off

    Specifically I'm thinking maybe the mechanics that raise the Tail is stealing some of my LIFT  [​IMG]

    I could TEST for this easy by removing the TRex Head and replacing with the Scale Head. Then attempt to FLY the TRex w/ the Scale Head, in affect flying without the Body and the Tail Riser ....
  2. GPBill

    GPBill Registered

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    Could be.
    Can you get it apart far enough to see if you can hear or see any thing that might be rubbing?

    I am sitting here waiting on epoxy to set. Kind of like watching paint dry.  ::)  ;D
  3. w00d

    w00d Registered

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    Or ... the eLog tells me what RPM the TRex is normally producing without the riser
    Now if the eLog tells me the RPM is lower w/ the Riser we will know at a glance it's the Riser that's the cause of the lowered RPM ...
  4. GPBill

    GPBill Registered

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    Better yet.  :)
    Do you have the same ESC in the 450 that you could compare the two?
  5. w00d

    w00d Registered

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    I do have the TRex in it's pure state, meaning it's flyable now ... and it does have the ICE50 with it's eLog that I can get a RPM reading before we install the Tail Riser. So after I get the reading I simply install the riser and take another reading. After that I can then install the Scale Head and take another reading to see if the Main Rotor is now taking away "anything", RPM or otherwise ... Seems to me the least painful way of finding out what going on
  6. GPS

    GPS Registered

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    I'm also wondering about the raised tail linkage.  Your's uses a longer belt that wraps around some bearings and guides and the one you showed us uses a shorter belt with gears to a second belt.  Perhaps that mechanism has less friction.

    However I am wondering about flex in your current raised tail mechanism.  Flex and vibration would rob the power significantly.
  7. w00d

    w00d Registered

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    There was no what I would call excessive vibration that I could see, not any that was obvious to the eye anyway ...
  8. GPS

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    I wonder if you put the scale head on but removed the raised tail if it would lift off and hover.
  9. w00d

    w00d Registered

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    Could do that ...

    Check the Head first or check the Tail first for testing it's all they same tihing ... {LOL} Either or
    something gotta come apart! Although I do think using the eLog would be the most scientific way
    of measuring the performance of the components involved if NOT more FUN as opposed to more
    subjective methods of testing. Meh, it's ALL good ... ... ... ... ... ... ...

    Guess tihs brigns us bcak to my preuives thought dun't it ... "I JUST gotta GET it done"  :eek:
  10. GPS

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    I know what you mean.  I still need to finish that Vibe 500e.  ::)
  11. w00d

    w00d Registered

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    Well NOT to make excuses although I am, finding the TIME with all the other idea's I have rattling around
    my head I'm also have some "real world" complications occupying my time and thoughts at the moment
    {LMAO} Plus my damned LEG hurts  :( ::) ;D
  12. GPS

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    I hope your real world complications are not too serious.  Our RC toys have to take a back seat to that kind of stuff.
  13. w00d

    w00d Registered

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    No not serious just a PIA
  14. GPS

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    I knew a German girl named Pia.
  15. Pelagic Pilot

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    I know a Thai girl named Pia.
  16. GPBill

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    Those aren't the gals you know are they wOOd?  ;D
    Just kidding, hope you are doing better. ;)
  17. w00d

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    LOL, I thought they were all PIA
  18. GPBill

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    Nearly all the parts are here to finish up this heli, but.. now I am able to see the error in some of my thinking.  ::)
    The mechanics will not fit in the fuse with the tail servo attached to the boom as it normally would, nor is the tail control rod I made going to work. The tail servo is going to have to be swung under the boom to fit and I'm starting to think that a "golden rod" may be the easiest way to link the servo to the tail, or a little creative bending of a metal rod.  :-\

    Another issue I've run into is, it's next to impossible to get the screws in to the rear of the frame to hold the mechanics down back there. I need a #0 screwdriver with about a 6 to 7" shank to reach them. The one I have is about 5" including the handle.  :(

    I temporarily mounted the main gears and head to the frame to check how close the servo to swash links were going to be because it appeared they were short, and they are, quite a bit.  :eek:

    It's turning out to be more of a challenge than I expected and that's not really a bad thing.  :)
  19. w00d

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    Just HATE IT when we have to BUY a special tool (the Screw Diver in your case) to get the JOB done ...

    Yup I too had issues w/ the location of my Tail Servo if left mounted to the Boom. Remember I decided to move it to the front of my heli frame, stuck with 2-Sided and Zip-Ties. And I knew before hand I would need to get it off the boom so I first tried mounting near the rear of the frame.

    Although this location may have worked especially with the shorter Push-Rod that came with my KIT, it was nevertheless a PIA to work on. So I did move to the front but had to buy a longer Push-Rod to make this happen.

    Hey Bill I assume your build uses your stock Push-Rod and I would have to assume this would be the best configuration, yes ... A configuration and option I wish I had! HeHe, sorry I know this is NO real help just my story of heli woe along side yours

      [shadow=Orange,left]w00d[/shadow]
  20. GPS

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    I recall w00d having this same issue with his Huey.  Didn't you mount the servo to the fuselage at one point w00d?
    I think mounting the servo inside the frames might be a good option, if there is physical space for that.

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