Day recap
morning icarus autotune
5AM flight ICARUS to run autotune
Run autotune for 4:30 min, the drone lost all autopilot and dropped about 1-2 meters
caused mechanical failures:
superstructure mostly undamaged
landing gear has a crack, leaving that to monitor
weight in the cabin s
Drew more than 2amps via BEC that has a 2 amp limiter for the pixhawk is the assumed cause. Repaired by switching out the BEC to one with 8 amp limit (I think)
repaired the drone after this
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checklist was not followed much, we could not take the transmitters out
should and can change the checklist to account for this situation
plug telem back in when done
can walk back n forth with the drone because we are at the airfield
Saw carleton fly semi transition with a flexible frame
Compass calibration was cool!
At the flight line: did control surface checks, motor test, arming check
Op flow issue, unplug->plug back in to solve
Anthony Luo flew in hover QLOITER, landed, no incident. throttle touchy,
Megan Spee also flew hover QLOITER, during the descent to land, rear right motor seemed to drop out and it fell from ~1m
As far as Aidan Bowers (Deactivated) can tell, nothing to do with Ardupilot
Fell for less than a second
was trying to YAW clockwise. Ardupilot wasn’t trying to throttle up or anything though to correct for this
Nathan Green says likely ESC or wiring issue
Maybe faulty ESC? was it a soggy ESC?
Motor didn't STOP spinning it just slowed down and lost throttle
Using DSHOT → if it doesn’t receive a valid signal, it will just stop. But it wasn’t stopped or locked (we have locking motors too)
Didn’t see this issue on cornflakes, we are using different ESCs, possibly that issue. Overheating? Was only on for a few minutes. The motor that failed was pinned at nearly 100% throttle. around 95%
didnt use radios
make sure behind flight line ppl arent calling up flight line
maybe conall has earpiece and filters behind fline info
also didnt take vtx. ended flight before plugin
Action items
Nathan Green working on motor issue ICARUS
Hamza Ali on media photos
R D task 1 stuff
Ethan Abraham soldering spare ESC
Revise checklists Megan Spee Anthony Luo Aidan Bowers (Deactivated)
Megan Spee comprehensive site survey
Anthony LuoAyoung Eun set up houston if we can
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