rayrokni
Second Officer
Flight distance : 8139875 ft
United States
Offline
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that is what i always do, chk imu calibration and compass mod values and as ive stated before i double check compass bearing using a compass manually. in case you havent seen the thread:
i have a plastic bin i use for take off, or a piece of 2'x2' wood with an arrow on it. iusing a compass i position the arrow to north 0 degrees. i then place the nose of p3 on that line and check on the app map to see if it is pointing to north.
imu= chk imu calibration, if it say its goodi place it on a level surface if the readings from top are 0, 1 and then compass 1400-1600. i dont recalibrate anything. if gimbal is off i recalibrate it, if it is still off a little i use adjust gimball roll feature to make it level.
now i am not saying this is what anybody should do, but i am of the mindset that alot of issues are because of constantly ..... around with imu calibration and for sure compass calibration.
if u decide to do what i do, then please double check the way ive outlined and take it up 10' or 20' feet and let it hover a while, test all stick movements at 100%, CAREFUL with CSC. one stick at a time!!
if u are happy with what u see, then go for it. always be ready for going to atti in case of trouble. drill that into your brain: Problem go into ATTI mode. Just keep saying it over and over again till it becomes muscle /brain memory!!
here is a list of what i routinely do and pre flight checks from another thread i did:
routine daily checks:
motors
all screws
every inch of shell is checked
battery housing and clips are checked
props under a microscope and the threads
motor threads
all visible ribbon cables and wires
battery life, cell variations
chks b4 flights:
chk compass mod values, i do not calibrate compass. ive calibrated it once after fw update and have travelled 1000 miles to the beach and flew without compass calibration but i religiously double check p3 compass bearing using a manual compass.
battery and cells
10+ satellites b4 take off
home point b4 take off
wind speed and direction
tallest object in flight path
cell and radio towers around flight paths
electrical, telephone lines that are difficult to see
where to drop it if in an emergency
hover at 30' for a few minutes while testing all stick movements at 100%
i am sure ive forgotten to write down a few more
it sounds like a lot preflight but it doesnt take but it takes less than 5 minutes.
Please remember these are personal experiences and opinions, i am not saying what i do is right but it has served me well so far. |
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