"Hi, 
If i'm updating firmware in APM do i have to do all the calibration again (ACC, gyro, compass, setup PID etc)?"

"Hi Dom, 
I'm using F450 ARF with stock motors and props and APM 2.6... With 40C 3S 2200mAh i get only 5 minutes without legs and gimbal... It is normal? Is 3S 4500 mAh give me 10 min flight time with gopro and gimbal or it is impossible?"

"Hi John, 

I update the 1 post with more data. I use all stock from DJI f450 ARF kit. The Opto ESC can't be calibrated. The quad is flying but only problem is that woobling/ bout on water effect... "

"I've add the update with first post with more data..."

"Thank You Chris i will try this."

"I will try that, thank You for the TIP."

"...as to Yours last sentence... You just tell me to buy NAZA.. :/ as its better.. ehhh  "

"Ok Bruce.. Let assume that i'm a complete idiot... What i should i do to make it fly as stable like my micro quad with multiwii (it have 7cm across but i can punch it and it will always stable even in wind :)  I have to make a little changes with's…"

"OK, why so APM do not have those Auto-tuning? It will much help for people like me... :( It cannot to be hardcoded? Confused... I buy the APM because of the waypoints.. Never think how hard it will be to tune the thing.. Yep its my ignorant... I go…"

"I will try that what  You suggest. I did not connect the Gear channel from my receiver as it Was in copter manual... The 7 and 8 channel was as optional... "

"Hi Chris, 
Wow, where i can find those sliders in mission planner? When i go to expert params i don't see them... Only i see the numbers... I use stock DJI F450 frame with stock motors and props from the kit. So You suggest that i should lower the…"

"jg9 i have only Spectrum Radio dx6i... I still looking how to tune the radio for auto tune but it seems to not have enough channels :( I'm not saying that NAZA is better then APM but its surely easier then APM to conf... And that's why i start this…"

"In all RC You can find difficulties... Flying helis You have to know a 16 directions (invert flying, tic tocs, back flips, front flips, side flips etc). In quads my trouble is those PIDS... I'm not lazy oh god... I buy Gopro camera for videos for…"

"Hymm.. I read all manual from the http://copter.ardupilot.com/. I mounted my APM on Kyosho gel to remove vibration ( i read the logs and i they are ok as with the manual). I made ACC and GYRO calibration, i made a compass moth calibration.... My GPS…"

"Of course i read the wiki and manual (i don't want to loose my fingers :)) My quad is flying but it's have so many oscillation so it hard to control it.. I balance the props, and i check my vibrations with the manual.. they looks very good ( i use…"