"all you need to do is look at the logs.... read the alt vs the time line.
But rather than trying to measure decent 'rates' all that is really important is the final Z vib  (and x and y to a lesser degree) shock value as it hits the ground!

ptegler"

"As an early supporter (kickstarter) I bought this having fallen for the comments about their Ardupilot support/intentions.
It's now 2 year later and they haven't done anything in support of the drone world rather moved on to the atuo industry.
So we…"

"ooops... https://leddartech.com/modules/leddarone/ is the one I use.... 3d printed case, very light...good for about 40-60m

nfi just a happy end user

ptegler"

"...I can't speak specifically to your UgCS interface control Q, but can at least suggest how to maintain your distance. to surfaces..... but it's dependant on your flight controller.

At least using Pixhawk.... you can use a LEDDAR (yes spelled…"

"*****Is there possibility to arm and disarm motors in Pixhawk like in Mikorkopter so to start motors both sticks on transmitter to low right and to stop the motors both sticks to lower left ?
yes...works the same way.
...same for the 3 2 switch…"

"did you run the compass cal at the flight site, pre-flight???
....or did you rely on a 'home' cal before traveling to the site...
ptegler"

"..nothing wrong with your concept (or diagram) until one battery craps out and shorts out (overloads) the second battery.
2 batts can be monitored via the PX2 and ground station so you can at least monitor both batts.
It's common to double up on…"

"if you were in alt hold gps hold etc the quad would have been trying to change throttles to match. to balance the quad (level out)
wrong prop direction or incorrectly calibrated ESC etc could all lead to your issue(s)
ptegler"

"what flight mode were you attempting to lift off in?
usually a flip on take-offf attempt is due to your props/motors not spinning in the right direction.
check the rotation, proper prop for that rotation and proper drive # for that motor axis
btdt…"

"well just this evening...first hand experience says Andre may not be right.....
Over the last two evenings I've been testing exactly this.Last night I ran a set of folding Tarot 1552s...H680 quad.... 380KV motors 6000mAH battery...AUW of 3318grams…"

"...sorrry don't do skype  don't do social media.  ...worst man made endevour ever.  Air conditioning killed the neighborhood (people no longer sit on their porch...communicate...know what's up in the 'hood'.  Social media is the next…"

"clueless in the M.E. isn't he. duh yes we all know pro systems exist...READ posts..statement was hobby here
It's obvious he has no clue or familiarity with ITAR requirements of such a device...even worse to his desired locale.     ..gotta' love a…"