Menu
Forums
New posts
Search forums
What's new
New posts
New media
New media comments
New profile posts
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
Search
Search titles only
By:
Search titles only
By:
New posts
Search forums
Search
Search titles only
By:
Search titles only
By:
Menu
Welcome DJI Spark Pilot!
Jump in and join our free Spark community today!
Sign up
Forums
General Forums
General Discussions
Quarry flight with sudden ATTI mode
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="RotorWash" data-source="post: 111410" data-attributes="member: 18210"><p>The compass onboard the craft is used in conjunction with GPS for navigation. If the compass data is off kilter for whatever reason the craft will drop GPS and go into ATTI mode (or OPTI if low enough) as it can no longer trust its own data and doesn't want to fly in a direction that the pilot's stick commands didn't intend and then become hard to control.</p><p></p><p>The transmission lines are a common suspect but I'm also suspect of your takeoff/landing area. When you turned the bird on and then launched was it near any vehicles (within 10') during that time? This can cause your compass to be irregular and it may not show up as a problem right away. Parking lots like the one you were in also have underground power lines, maybe pipes and sometimes rebar or wire mesh.</p><p></p><p>When you were pitching forward heading out I noticed you holding the right stick some degrees to the right, did you feel you had to compensate to keep the craft going straight at the time or was that just the path you wanted to take? You were fortunate with your flight back as it was in ATTI mode (RTH requires GPS) with little stick input and only started using GPS during your manual decent to land. Nice job there btw.</p></blockquote><p></p>
[QUOTE="RotorWash, post: 111410, member: 18210"] The compass onboard the craft is used in conjunction with GPS for navigation. If the compass data is off kilter for whatever reason the craft will drop GPS and go into ATTI mode (or OPTI if low enough) as it can no longer trust its own data and doesn't want to fly in a direction that the pilot's stick commands didn't intend and then become hard to control. The transmission lines are a common suspect but I'm also suspect of your takeoff/landing area. When you turned the bird on and then launched was it near any vehicles (within 10') during that time? This can cause your compass to be irregular and it may not show up as a problem right away. Parking lots like the one you were in also have underground power lines, maybe pipes and sometimes rebar or wire mesh. When you were pitching forward heading out I noticed you holding the right stick some degrees to the right, did you feel you had to compensate to keep the craft going straight at the time or was that just the path you wanted to take? You were fortunate with your flight back as it was in ATTI mode (RTH requires GPS) with little stick input and only started using GPS during your manual decent to land. Nice job there btw. [/QUOTE]
Verification
Post reply
Forums
General Forums
General Discussions
Quarry flight with sudden ATTI mode