I have noticed upon touchdown of the craft I hear to a greater or lesser degree a revving up of the
motors before idling down. I have gone to minimum throttle at 6" above ground and this still occurs.
I had a flipover recently due to this plus some light wind. I have been told to recalibrate the ESC
but I have heard this momentary rev up since then. Sometimes it is barely noticeable and some-
times it is very noticeable. Another problem I have had recently is for the craft to switch to the
LAND mode on its own. One time I noted the battery at 50% and another time at 30%. Since
then at normal, below 20%. Any comments along these lines would be greatly appreciated.
Thanks for reading and HAPPY FLYING.
I'm having the same issue. When it touches down I even try to disarm and it still revs uncontrollably. I've even had it lurch forward like it was going to take off again. Ive calibrated the esc's numerous times and it doesn't seem to help. I'm beginning to think it the radio.
I have found that after autonomous missions that it winds down nicely if I leave it in "auto" mode. I stick dwn/left and it switches off. I find that if I switch to standard mode I experience the revving. Just my experience...
Wow, I don't understand, how I could missed that. It is exactly as you say.
So far I had three flipovers, everytime with broken props and it was everytime after landing in stabilize mode after auto mission.
How did you solve it? Are you putting land as part of mission? Or is it, for example, possible to switch to stabilize after mission and then land by RTL?
I've had the most success appending take-off and landing waypoints when send mission file. I find it shuts right down on landing when I use that scenario. It took me a while to learn you can still guide and control the Iris while in Auto with your standard controller. Usually I will make minor adjustments to my landing spot. I've had a few instances where someone unknowingly walked under the landing and I flipped the RTL switch. It climbs again then lands.
Same or similar issue. I was starting to wonder if I wasn't disarming correctly. Interesting comment above re behavor after an auto mission. Very often I run an auto mission, then do some manual flying in Alt hold or Loiter. Gonna give it a try without ever running an auto mission.
are you saying that you've never witnessed this? I "try" to disarm after motors are at idle.
I had this problem on old 3DR IRIS in Stabilize mode, I didn't changed anything in mode settings and used the FlySky radio. It happened 3 times, always after auto mission (but I have also did successful missions and landing in stabilize mode).
I will try to find logs.