Total Members:18392 | Users Online:652
Millionth Post:electricsceadu

Results 1 to 4 of 4

Thread: Spektrum Analyzer Vbar

  1. #1
    Site Sponsor discoferret's Avatar
    Join Date
    Dec 2009
    Location
    Southampton
    Posts
    1,860
    Thanks
    1,253
    Thanked 584 Times in 406 Posts

    Default Spektrum Analyzer Vbar

    I'm a bit concerned about high vibration messages in my Vbar log. So I thought I would investigate further. I took the main blades off and plug in a usb cable to use the Analyzer tool in the Vbar menu. Spooled it up into idle up and the highest reading is well below the yellow line. Is this ok? I take it the yellow line is the max reading that any spike should be?
    Current helis: I only need one heli and thats the


    SAB Goblin 700, MKS950 cyclic, MKS980 on the tail,Vbar Silverline PRO, Kontronik Kosmik 160HV, Quantum 4530- 500kv "Goblin Edition" , powered by 12's Giant Power 5000mah 50c's.

    JR XG8 DMSS and Phoenix Simulator.

    www.southhantshelis.co.uk








  2. #2
    Site Sponsor swale's Avatar
    Join Date
    Nov 2011
    Location
    Slough
    Posts
    888
    Thanks
    135
    Thanked 237 Times in 192 Posts

    Default

    sounds fine if its below the line that indicates no faults
    Sponsored by....

    R2Protoyping HV˛BEC
    http://www.hv2bec.com



    x2 - Trex 700N DFC O.S 105 HZ-R, PB Pipe, V-Bar Silverline, Align BL700HV, BL750HV Tail Servos, Align 700 3G Main & Tail Blades

    x2 Trex 700E DFC HV, V-Bar Silverline, Align 700 3G Main & Tail Blades, Scorp 4525-520kv, Castle ICE 2 160HV, Align BL700 & BL750 HV Powered by
    HV˛BEC @ 8.4v

    Powered by Scorpion 6s 65c 4500mah

    Futaba 18MZ

  3. The Following User Says Thank You to swale For This Useful Post:

    discoferret (22-07-2012)

  4. #3
    Site Sponsor Andy from Sandy's Avatar
    Join Date
    Sep 2007
    Location
    Beds
    Posts
    4,486
    Thanks
    666
    Thanked 1,655 Times in 1,312 Posts

    Default

    To the right of the frequency chart is two barometers; one showing vibration number and the other the maximum vibration number.

    I would recommend you change something and see what happens to those numbers.

    I dynamically balanced the tail on my Logo 500. The figure started at 300. Then I made things worse and it went over a thousand. I then started getting good reults and stopped when I got the figure below 100.

    The frequency chart allows you to work out where the vibration might be coming from by converting Hz (cycles / second) into rpm by multiplying the number by 60. A tail spinning at 9000 rpm with bad vibration will show as a peak at 150Hz for example.
    Member of Mk Heli Club



    GRAMMAR: The difference between knowing your shit and knowing you're shit!

  5. #4
    Site Sponsor cupracing's Avatar
    Join Date
    Jan 2009
    Location
    UK
    Posts
    3,656
    Thanks
    937
    Thanked 814 Times in 715 Posts

    Default

    What's your flying style? Doing 3d will showup alot of extreme vibrations
    Compass 6hv

    Whatever the mind can conceive and believe, the mind can
    achieve.



  6. Remove Ads Between Posts

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •