"fyi, here is the well known noise when sync is lost. Motors RCTimer 5010, ESCs RCTimer SK-30 with SimonK"

"Charl,
sorry to hear about your crash, but be aware that we are testing beta RCs. Could you upload the .bin or .log file?"

"for Taranis X8R receiver it works without R or C. easy direct connection."

"For frSky X8R, plug in the RSSI cable to SB on Pixhawk directly.
Set following parameters: RSSI_Pin:103 and RSSI_RANGE:3.3"

"Thx Marco,
So I guess it just needs a few seconds to normalize pressure before one does a new take off."

"Hi,
tested RC12 again and noticed that unknown sound during arming. I did another flight directly before, where I landed in loiter.
After disarming I switched to AltHold and tried to arm again. Nothing happend but that sound. I disarmed although it…"

"Rainer das ist Thüringen :-)"

"Tested RC12.
Stab, Althold, Loiter, PosHold and Land in Althold are working fine.
Attached Log File. Pls ignore vibration levels, bcs of new imbalanced props.

2014-10-15 18-45-17.log"

"Hi,
i did some testing and here are the results after 3 lipos. I did the compassID trick to avoid a new calibration.
(EKF off)
Stabilize:OK
Althold: OK
Land in Althold: 2x OK(motors shuting down nicely after land), 1x fail(touched ground bit to…"

":-)
3.1.5 is the most stable release, so I use it on all of my friends copters. When they come for a repair, I know it wasn't the software.. Since we use at least LEA6H or M8N GPS I can eliminate GPS issues.. (pls don't use NEO6M any more)"

"Yes I did it intentionally to show a friend the full throttle accelaration..
due to too high current the integrated power distribution board got a burned copper trace next to the battery solder joint. But it doesn't matter, that quad is build for…"

"3.1.5 is really stable, so compassmot is working well.
Though some copters hardware fail :-)"

"Randy,
could the new RC4 default of ATC_RATE_FF_ENAB=0 affecting altitude drops, in fast flight I noticed as well now."

"Randy,
tested RC4 on Pixhawk in Quad X-Config:
Stab:OK
Althold:OK, also take off, land, feedback works well
PosHold:OK, also take off, land and feedback
Drift:OK, but only for 2 turns in one direction. After 2 turns yaw control is fully lost.…"

"Ravi,
In case you have no luck, try setting SR2_PARAMS to something else than 0, ie. 50. Maybe you use all the SR1 values for SR2 parameters. (In case they are all 0)"

"hi,
maybe RC3 has an issue and ANGLE_MAX parameter has been ignored during breaking. "