Hi, I’m quite a newbie so please forgive errors and inaccuracies.
In a few words, the problem is that my Quad lifts off 1m /1,5m at full throttle and after seconds lands/crashes.
…with more detail:
During setup, I followed carefully and exactly the steps described in Arducopter documentation, how to’s videos and did ESC calibration many times… but the result was always the same, little take-off and then a crash, like if the Quad were too heavy for the provided motors/propellers.
I repeat: it lifts off 1.5 meters only at full throttle.
I tried to look in this forum for similar problems as well but without success. Also, the collected logs look still a little unfamiliar to me.
I’m asking for hints, controls to do, suggestions or whatever I have to do in this case to troubleshoot this problem and let this Quad fly
That should get off the ground but it will be underpowered. Or your weight estimate is off. It’s a HolyBro kit? They say it weights 1320g w/o a battery. Anyway it’s underpowered, no amount of parameter fiddling will fix the basic problem. Buy a 4S battery that will bring the Take Off Weight to ~1700g and you should be good,
OK, then you have a battery problem if it’s a 4S battery or your battery monitoring is way off. Look at the battery voltage in your logs. They start ~11V (2.75 V/Cell for 4s) and drops to ~8.5V (2.1 V/cell or dead) under load. Was the battery supposed to be fully charged when these logs started?