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TBS Discovery #2.5 flew for the first time today, a total rebuild of the crashed #2 into new TBS frame plates. That and a set of 4 new Graupner 8 x 5 props and its back up and flying as well, maybe better, than the original version. I really like those iPower motors, 4mm mainshaft with bolt-on...

The motors are good, it's the speed controllers you have to worry about, they will short out if they get wet enough. I've flown in both rain and snow with one of my MK where all the electronics are covered by a dome, the motors are out there in elements and don't seem to mind. After flying I...

Not against the rules, post the link. FWIW, I use Xoar props on my MK hexa, it's the quietest multirotor I own. These props whisper compared to the Graupners I run on just about everything else. Ken

???... I have it setup identically on both my WKM and Naza, a three position switch I use for manual, atti, and GPS that I mix with a two position switch to trigger failsafe, I don't see any other way to do it with a WKM if you use all three flight modes on a switch unless they changed something...

Setup the three position switch for manual, atti, and GPS. To trigger failsafe you need to use a different switch in a program mix with the channel the 3 position switch is on. The mix will add or subtract an amount of travel from the three position switch channel and put the flight controller...

I've taken a closer look at it and it appears the total damage is the TBS frame plates, 3 Graupner props, the battery, and 1 arm. Considering it fell end battery first onto pavement and then rolled once or twice stopping just short of submerging itself in 8 inches of water it held up OK, my MK...

Here's 100 + reasons to retire old battery packs... First time in the field with my TBS Discovery #2, flew superbly right up to the moment this happened. This time I have video of actual event even though the GoPro got tossed from the frame and ejected the memory card, I was recording the...

How many different battery packs do you have? Do you notice it happens with a partcular battery(s) or is that something you haven't checked? Its not unknown for some batteries to have magnetic interference that can mess up the compass board. Mark the packs and try a few test fligts without...

See what happens when you try to use your brain before its fully caffenated... ;) I think I'll charge some batteries and go finish dialing in my Droidworx AD6 and AV130 setup, that I can handle Ken

I just looked at the specs for those motors and I'd say the problem is you're trying to lift too much weight with motors that can't handle it. According to the specs the MT-2216 will produce around 960 grams of thrust on the Graupner prop so 6 of them will give you 5760 grams of thrust. You...

Opto isolation is in the circuitry of the ESC, there isn't any way I know of to modify a standard ESC to be an opto short of design/build an add-in circuit to perform the isolation and then merge it into the ESC by cutting traces/removing components. Just pulling the power wire from the signal...

Looks to me like the basic gains for pitch/roll are a little too high, lower them a bit and use expo on the TX to make it more controllable in manual mode. A properly setup WKM or Naza should feel like its barely controllable in manual node without expo if the gains are right. ATTI and GPS are...

Isolated on the signal wire, optos don't have BECs and no connection on the + wire to begin with. - connection is provided for cases where the ESC and controller may not share the same battery. Ken

Which is all the more reason to land it and figure out what is going on rather than keep flying it, they rarely fix themselves when something like this happens so keeping it in the air just provides more Youtube entertainment. Ken

Yes running just the signal wire is acceptable, the ESC ground plane is common to all circuits though the lipo power leads so it doesn't need the ground connection to the controller. The controller is on the same ground plane as long as you are using the same battery to power the ESCs along with...

Not unexplained at all to anyone that is fully familiar with DJI Wookong-m controllers. If you notice in the video the LED is flashing multiple white flashes which is an indication that the IMU is picking up serious vibrations, I believe in manual the recommendation is to land and fix the...

I haven't run into it personally but plenty of other people have, the problem is usually a bad PMU. Interesting that it didn't fry the RX as well, or did it? Running gimbal servo power through flight controller boards is a bad idea regardless of which system you use. Many digital servos are...

When I had this problem with any DJI flight controller it has always turned out to be one of two things, a bad compass calibration or positioning the GPS unit to match the magnetic declination where I live. Try recalibrating the compass first to see if that helps. I looked up the declination for...

Perhaps something to do with declination in the southern hemisphere vs the northern. I know there was an issue with GPS in general with the original batch of YS-X6 as you couldn't input the correct number and direction beyond a certain amount, apparently the firmware only took into account...

By making sure the multirotor equivalents of the Szabo brothers of Align heli fame all get one well before release to the public and show the world what they can do with it, it creates an air of excitement by making everyone believe that if they only had one they could fly that way too when in...