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Losing altitude in ATTI mode

Discussion in 'Phantom 2 Vision Discussion' started by Lew40, Jan 22, 2015.

  1. Lew40

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    Hi all.
    Its happened to me before but I changed the gains a little, soon changed them back.
    This time I haven't changed anything, every thing is in default.
    When I fly in GPS, she flies perfectly and holds altitude no problems.
    Any solutions?

    Cheers
    Andy
     
  2. N017RW

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    Ponderous.

    Can you do some more testing?
    GPS is not used for maintaining altitude.

    It is the barometer.

    I do not have this problem and I switch modes frequently to let my kids fly.
     
  3. Jebus

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    In ATTI mode, my v1.1.1 won't maintain altitude if I'm moving quick. I just assumed this was normal. Works perfectly in GPS mode.
     
  4. N017RW

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    Loss of altitude in agressive flight is not uncommon.
     
  5. Lew40

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    I'll do some testing tomorrow.
    This has only started to happen in the last couple of flights. Before she would hold altitude perfectly.
    I have been flying a bit aggressive lately though. Testing the range on my new antennas so got to go out as fast as possible and come back in as fast as possible.
    One thing I have noticed is when I'm in ATTI and losing altitude, I try to increase the altitude while going forward but nothing happens. Got to release the throttle and then increase the altitude.

    Might re calibrate again
     
  6. Jebus

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    If I apply some lift while going forward quickly, I can easily maintain altitude. But if I just use the right stick , it will lose altitude.
     
  7. general01

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    ^what he said I have done max speed runs in atti mode(have yet to set a speed I would like to brag about)

    If I am going full tilt forward I will always hold the throttle up to sustain altatude if not I would have done a 50mph splat in a pine tree(I fly over trees a lot)
     
  8. Lew40

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    No testing today :-( 30mph winds and raining like mad.
    Never mind there's always tomorrow :)