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  1. Mortalis

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    OMG!

    My second flight,
    Having issues with the transmitter connecting to the camera yet I can see video and take video but the gimbal does not rotate or swivel up or down.
    Take it up to about 20 feet,
    Fly around a bit, she is quite a bit more nimble than my Q5004K kind of took me by surprise,
    Pressed the video button and started recording,
    Started to Yaw to take a panaramic and after I completed one revolution and stopped she started to drift a bit almost like she was dizzy. :)
    Started to bring her back to land cause she was acting a little strange, drifting this way and that and when I would give the controls some movement to try to correct the drift she would jerk and then not go where I wanted her to
    Decided to land and then it started.........OMG
    The circle of death. I started to panic. I cant land her when she was doing that. After about 2 - 3 mionutes trying to get her to calm down I was finally able to minimize the circular drift and got her on the ground.
    Shut her down and decided this was enough for today until I can figure out why the circular drift.
     
  2. Burntpixel

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    Try recalibrating your compass.
     
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  3. Atomic08

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    Same thing with mine...
    I have a total of less than 7 minutes flight time with my new H...
    Practicing take offs and landings, happened each time I tried to land...
    Very erratic....
    Didn't respond to controls ( Angle Mode, OA Off ) 15-17 SATS
    When landing, hits hard and flips over.
    Did calibrations to Compass and Accelerometer
    Talked to Yuneec Support a number of times and they RMA'd it.
    Didn't have the H for 48 hrs !
    Support said they have had a few with the same problem.
     
  4. Dragonflyerthom

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    Hummmm. Sounds not good. Always angel mode and OA off. Double , triple check. Then check again..lots of hovering two three batteries be safe my friends and have fun
     
  5. Mortalis

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    Angle Mode = Yes, always (for now)
    OA = Off yes
    Lots of Hovering = 5 months experience with 4 battereis Q5004K

    Going to recal compass and acceleromator when I get home from work.
    The camera not calibrating correctly worries me but not as much as the circular drift.
     
    Steve Carr likes this.
  6. Mortalis

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    Yep......once I get home from work.
     
  7. Mortalis

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    Plus, I'm gonna do the updates. Hopefully after doing all that my issues will be gone.
     
  8. Steve Carr

    Steve Carr Moderator
    Staff Member

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    The accelerometer calibration is extremely important. Make sure it's on a very level surface and doesn't get moved while it boots up and during the calibration. Also pick a level launch spot to take off.
     
  9. gregreh

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    Not that it will necessarily help but before I flew my H, I did all firmware updates and all calibrations and I;ve not had any flight problems (touch wood, famous last words) Hope you get it sorted. I can imagine the panic I would feel if something similar happened.
     
  10. CAPTAINDRONE

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    If you received your Typhoon H and calibrated the compass, then this is what can occur. It's caused by a misaligned compass which affects the IMU (the IMU is attempting to correct the compass issue hence the circle of death).
     
  11. Dragonflyerthom

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    I'm going to agree with ya on this Captain.
     
  12. Mortalis

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    Yes, I calibrated the compass but I performed the calibration with props installed. This made it awkward to easily spin the unit on the arms.
     
  13. Luckyleaf

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    Circle of death ! ?.. Hello Sorry I'm new to this forum and just purchased a H on Monday , it hasn't been flown yet hopefully tomorrow. I've seen some footage where the calibration wasn't done and it flew fine ... So I am wondering if I need to calibrate or not. I have only one battery atm with another 3 on order coming next week or so I am told, so I'm hoping my first experience will not include any flipping on landing ! Obs off and in angle :)
     
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  14. DroneClone

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    Were you in Smart Mode ? or the circle of death followed you like the Grim Reaper into the Angle mode?
     
  15. Mortalis

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    Ok, my nomenclature of 'Circle of Death' was incorrect as I have seen it used to describe the Safe Mode radius around the controller while in Safe Mode. That is not what I was referring to. I was in Angle mode.
    My situation was that the H while in the air in Angle mode was drifting in ever increasing circles. When I tried to land it it was moving sideways so fast it would have tipped over upon contact with the ground.

    Update:
    I updated the firmware on the H and the only thing that updated was the gimbal. That update seemed to fix my issue of the gimbal being unresponsive to any transmitter input. So, that's fixed.

    I recalibrated my accelerometer and compass once I got home and was able to place the bird on a known level surface without the propellors installed to interfere.
    I flew her for 10 - 12 minutes or so and she acted as one would expect. No drifting and no unwarranted circles.

    Everything appears to be working as planned now.

    @Luckyleaf,
    I would recommend you perform at least a compass calibration before trying to fly. It only should be required to be done once as long as you dont travel to far (I think most say 50 -100 miles from the point of calibration).
    Tip.....Do the compass calibration without the propellors installed. It just makes twisting the H easier without getting your arms all tangled in the props.
     
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  16. DroneClone

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    So very glad to hear you got it squared away ! I felt it might have been the accelerometer calibration, as your symptoms are exactly what a needed calibration on accerlorometer does! Glad for you ! and Fly safely my Friend !
     
    Steve Carr likes this.
  17. glider

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    Good that you figured it out, but I wonder how many pilots check the solar K-Index before flying.
     
  18. DroneClone

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    Every time I fly ! On :
    UAV Forecast
     
  19. Mortalis

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    Same here. I live by UAV Forecast
     
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  20. Luckyleaf

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    I did the compass calibration and first flight today, I stayed in the pilot mode throughout ... Lost my video link half way through probably because mushroom antenna was pointing downwards but I was in an open area by the coast got some good footage for first go, even though it cut short maybe because I lost link ! Who knows I way too busy looking up in the sky ... ;) awesome .... Can't wait for my extra batteries to come next week !