"Adding a third IMU makes sense for a lot of reasons.  You now have an odd man out voter (see space shuttle).  With only two you you have to cleverly "guess" which is the more reliable IMU at any given point in time.  Adding a third doesn't have to…"

"One less IMU that's not temperature controlled for more money?  How is this not a step backwards from the Pixhawk2?"

"Is this using the nVIP2400?"

"This is essentially MIMO sys ID of airspeed.  Creating a S-domain equivalent would likely be mathematically simpler. Cool idea.  The EKF airspeed  estimator on APM is also an out of the box solution that is working pretty well.  We have used the…"

"It's based on distance.  Default is 60 meters of flight path retracing after lost link.  Supposedly this distance is user configurable in parameters."

"Perfect timing for some of my research!  Thanks and as usual, great work!"

"We flew again today with the new gains.  Perfect!  Solid performance as expected.  We don't have any video but it's crazy small in the sky at 4000' agl so it would be hard to see anyway :)"

"Does it come with a raspberry pi zero, because otherwise... good luck getting your hands on one...  Great idea!"

"This was unapologetically a low fidelity model and I was simply trying to smartly narrow my options.  I set the N at zero but you theoretically can run the PID in discrete mode which should help your described issue. I don't think it would be…"

"Yeah that's sort of the goal for this project at face value.  I did account for 'some' of the APM specific PID specific scalings, but I'm sure you could help me find more (IE Feed Forward as recommended).  In a perfect world, the param file would…"

"google gave up on this method and I suspect this will be more of the same.  quad shot etc.  "

"Pretty much sums up my thoughts: https://www.youtube.com/watch?v=IHfiMoJUDVQ"

"Multiple 900MHz radios but not one per aircraft.  Wifi on odroid is used between aircraft for leader follower algorithm as well as controlling swarm behavior.  "

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