Question on compass calibration

[AJupstateNY]

Greetings,

Have had the H for a week, due to weather just got out to do the compass calibration, and didn't get it to calibrate, but I see by the FAA B4UFly I live in a zone to contact ATC, but none of the items listed are ATC control. Two are friends within few miles, one fixed wing and one rotor. One is heliport at a casino and seen no aircraft there in last 5 years and one is the state police heliport?

Could setting in H cause this? I hate to drive out to god knows where to try calibration again.

Also see some type of curved red line and numbers in meters on ST16 screen, never notice anything on this before anywhere.

AJ

 

[Rayray]

Also see some type of curved red line and numbers in meters on ST16 screen, never notice anything on this before anywhere.

The Compass calibration can be tricky until you get the hang of it. Regardless of NFZ, I think you should be able to do the calibration. You can carefully remove the camera if you wish. Follow the video or manual instructions until you get the solid green light, then the reboot of the H. A bit of practice and you'll have it.

You probably have the RealSense Pro. That arc in red which comes and goes is RealSense measurement to an object, or the IPS measuring distance to ground. Not anything to worry about.

 

[PatR]

Do remove the camera and gimbal when performing a compass calibration. They are not designed to be flipped around like that. If installed, remove the propellers to assist performing a faster spin. The compass cal seems to prefer completion within about one minute from the start of the process. Slower and the calibration does not complete.

What you described from B4UFly does not sound like control zones, mostly private fields that are not afforded protected airspace status. The police helipad is not a formal CZ, and at most requires simple notification of your intent to fly. Posting the city and state would provide a map reference for those that might review an aviation chart for airspace info, or you can look it up yourself at www.skyvector.com

 

[AJupstateNY]

Thank you for all the info. All the videos help, but info from forum members is priceless.
Now to see if we have that possible foot of snow tonight or tomorrow! I see that trip to FL in my future!
AJ

 

[Thunderbird360]

& My calibration never works unless H is facing North to start, and yes I have been told that by both Yuneec tech and by other users and no, its not, as far as I know, in any documentation. Binds every time though!

 

[PatR]

I've never tried it not facing north. The only times I've had a calibration fail is when I left the props on and they interfered with the rotation process, slowing things down. It gets done a lot faster if the props are removed to permit faster rotation.

Thanks for posting the reminder to start out with the front of the H facing north.


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[CraigCam]

I've never tried it not facing north. The only times I've had a calibration fail is when I left the props on and they interfered with the rotation process, slowing things down. It gets done a lot faster if the props are removed to permit faster rotation.

Thanks for posting the reminder to start out with the front of the H facing north.


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Starting out facing north is part of most compass calibration procedures. They did not state in manual but it's a good plan to do it.


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[CraigCam]

Starting out facing north is part of most compass calibration procedures. They did not state in manual but it's a good plan to do it.


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Yesterday, I performed a facing north calibration to make up for a sloppy one I did the day before. How you perform calibration does make a difference. I stayed level, slowed down my flipping, always stopped level on flip transitions and kept hand off to new flip point level. The hover stability was perfect and no drift. Had a great flight.

BUT... next flight I fired up the H waiting for the sky to fire red at sunset. I had everything connected and let the H sit for quite awhile waiting for the right moment. Meanwhile, I calibrated my Breeze and flew it for a bit.

I decided to give the H a quick pop up for a last look at the horizon and started the motors. Upon take off, I had immediate compass error and loss of control. Took a bit of wrestling and elevated heart rate but no crash.

So I can spend time wondering what happened - sat too long? So won't be doing that again...maybe that rock I put to hold down portable landing pad was iron? So won't do that again... bad battery? That I'll be checking and have some caution until I determine if one is suspect....

Or I can walk away from where I set up, go back to safe park area as now everyone left at dark and no dogs and calibrate again and get back to safe behavior.

My point is and as this forum demonstrates, the compass is still something to keep an eye on and I'm not going to assume anything ever is always right all the time. I always fly up about 6' and test all controls and watch behavior before staring the video and flying off to shoot and that saved me yesterday.


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