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What do you guys feel are the ideal X8 frames, from a value standpoint for professional applications? I have a need for portability so this weighs heavy on my design, but for others this may be less of an issue. I have a QuadFrame hex and really like its folding mechanism; no bolts need to be...

So while we likely won't solve all the world's problems in a single thread, what do you guys think about the graphs and data above? Anything stand out? I will post it on the APM forum as well in case someone can dig into the log.

Again, I think I have simply misrepresented my intentions for this research. Also I haven't posted the numerous other autonomous flights/missions I've already done and continue to do using APM. As for APM or Pixhawk in general I think the confusion stems from the fact that folks are judging it...

Thanks, that is good insight. I've seen a few of those really big ones posted on rcg. Sent from my iPhone using Tapatalk

Alright, here are some graphs from this experience that I think are relevant. I was initially in Stabilize, but took off in Loiter. Once it SEEMED to be climbing inexplicably even with 0 throttle I put it back into Stabilize. This is evident in the Alt (Yellow) vs. DAlt (Desired altitude...

I think we need to be careful judging the situation until we've reviewed the data, which I've only just started doing today. I think I would restate "all FCs have their issues" as "all FC's use essentially analogous if not identical sensor inputs and processing power, with essentially analogous...

I think you are simply making assumptions about others' requirements. We all do it, but it tends to lead to misunderstanding and misjudgment about others' decision making process and/or the validity of their own experiences and needs.

That is precisely why I started with a rover, and have other smaller craft to validate ideas without the risk. Haha, thanks. Yes. Pixhawk has things that I need as an engineer and explorer, and is the only one that does. I don't buy the learning curve argument; that is ultimately the cost of...

I will check that, thanks. reviewing the logs (which I will post shortly) it did indeed see RC3 input, the throttle channel, go to 0 yet the desired altitude and the motor outputs definitely did not do what I thought 0 throttle channel input would do.

Based on your understanding, I must have really seriously misrepresented my experiences as well as my intentions. For the record I have had numerous excellent experiences with APM and Pixhawk, running both Rover and Copter. The entire purpose of this project is experimentation and research. So...

OK, thanks. I am looking forward to experimenting and A/B testing with a flat hex carrying a similar payload. Since I'm already familiar with KDE3520 400kv's, what do you think of a coax octo with those?

What ratio do you use for top to bottom prop sizes? How do you square that in ecalc, just use the average? Sent from my iPhone using Tapatalk

Really neat product, but it bums me out that nobody has mentioned this was actually invented by another Seattle-based firm Beeworks, makers of extremely well-designed equipment manufactured in the USA. They are much smaller and made a public announcement early on as part of a Kickstarter...

Really great insight, thanks @SleepyC . So the compromise is losing a bit of thrust efficiency in exchange for the gain in portability (another kind of efficiency). You are right, I am looking for objective truth to discern an optimal design. And as you infer, when props are in view, these are...

Here you go. GH4, aerialpixels HDMI to AV board, TS832. Works both for monitoring and during recording. I can also confirm it is unnecessary to power the HDMI board as the GH4 powers it through the HDMI. What have you tried that hasn't worked? Sent from my iPhone using Tapatalk

Hi guys, Can someone explain to me why coaxial configurations have become so popular? We are looking at designing a platform for imaging that will need to be as stable as possible for an industrial/agricultural application, so I am considering options. It seems for general AP that having props...

not yet. since you mentioned it I will play with it today with the GH4, and just for fun with a Beaglebone Black as a video source :)

1. Just consider the difference between the various cells to look for one that is way off from the average. There isn't a surefire, consistent method for determining "bad" readings so just have a look at it on every charge. It will matter proportionally more on high discharge batteries (meaning...

just for the health of the batteries, since the charger can't "see" the separate batteries, it will just see it as one larger capacity battery. So for example if you have one with cells around 4V and another with cells around 3.6V, this will end up getting averaged in the charge circuit and it...

yeah, I think that is a nice way to go. I haven't done it personally but I know a lot of people do it.