GPS info for air 2

Does anyone know the positional format and Datum used in air 2 gps? Thanks

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Comments

16 comments

  • Comment author
    norman ziegelmeyer

    Does someone know whether the drone altitude data in the logs uploaded to airdata for a flight are referenced to Ground or take off point? I'm trying to analyze a crash. Thanks

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  • Comment author
    Mike (Arizona Wyldwest) Dronelink Expert Dronelink Expert
    • Edited

    I don’t know much about the records. Airdata record’s CSV file show Lon/lat in decimal format and the altitude in both ATL and AGL are shown. Also Includes the actual elevation. Not sure if this helps. 

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  • Comment author
    norman ziegelmeyer

    Thanks Mike, In spite of watching tutorials and other videos, I'm still confused about altitudes. Don't know if the drone can record actual altitude or if that is determined by app. Btw going after drone again tomorrow. Failed for various reasons on first two attempts.

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  • Comment author
    Mike (Arizona Wyldwest) Dronelink Expert Dronelink Expert

    The drones altimeter is what indicates altitude from the actual take-off location, or some use above take-off location and the app is showing what that is. These drones can’t measure the AGL, above ground level while flying. That’s why when flying whether with DJI or DL app it may show a negative altitude if it flys below the take-off location. This happens when I fly from my driveway which is about 50’ above the street level and go lower. The DL AGL function is using ESRI mapping data of the terrain to keep it at the approx AGL altitude you set. The app still indicates what the altitude is from the take-off. Not sure if that helps. It can be confusing sometimes. 

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  • Comment author
    norman ziegelmeyer

    It does Mike thanks

     

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  • Comment author
    Mike (Arizona Wyldwest) Dronelink Expert Dronelink Expert
    • Edited

    I completely forgot to mention, Airdata has an HD flight player for each flight similar to the DJI app. So you can see on the map where it was before disconnect. Of course it won’t show where after it lost connection but it will give location on map as a reference which you can zoom in on. Maybe it can help find it from its last point. 

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  • Comment author
    norman ziegelmeyer

    Recovered drone today, loss of telemetry was caused by collision with a very tall tree. Only damage was two front props and crack in lower Cover and lost two front landing gear extensions. Some water as the drone went through two bad storms.see attached taken before removed, it was a tree that was down. Used iphone and cachly to navigate to waypoint. Hopefully a dry out will get it in the air again.                           

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  • Comment author
    Mike (Arizona Wyldwest) Dronelink Expert Dronelink Expert

    Ouch. At least you got it back. If it got water inside there has a way to dry it out. Some use the desiccant packs and place in a cardboard box for a week or so. If it needs repairs behind your capability then you may not want to try. Good luck and I hope the cost isn’t too much. 

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  • Comment author
    norman ziegelmeyer

    Looks minor. Where is the player on airdata?

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  • Comment author
    Mike (Arizona Wyldwest) Dronelink Expert Dronelink Expert

    Go to “my logs” and click on the flight. Select “notifications” and you will see the HD Flight Player. 

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  • Comment author
    norman ziegelmeyer

    Thanks, that will be very useful and I knew nothing about it

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  • Comment author
    Mike (Arizona Wyldwest) Dronelink Expert Dronelink Expert

    It took me awhile to figure out many of the features. 🤙🏼

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  • Comment author
    norman ziegelmeyer

    Follow up on drone recovery. Only damage was broken prop and crack in bottom cover. Camera had water vapor behind lense (dried it out). It flies ok. For those interested here is a link to final seconds of flight, it had avoidance set to go around instead of hover, as it turns out I think that was a mistake.

    https://drive.google.com/file/d/15HislVrt3Wj1WkUyicw8JXFiFMAAjAVn/view?usp=sharing

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  • Comment author
    norman ziegelmeyer

    Is there a way to analyze the effects of winds aloft in the logs? Thanks

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  • Comment author
    Barry Houldsworth Dronelink Expert Dronelink Expert

    Yes.  If you have them in Airdata (I think you do) there is a section in there that shows the wind during flight.

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  • Comment author
    Norman Ziegelmeyer

    Thanks Barry

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