Power delivery / signal wires secure, no cracks/corrosion/damage
Video System
goggles(?)
Monitors(?)
Video tower tested & working
Laptop w/mission planner configured correctly.
LTE Link tested working
Flightline Kit
Spare motors
Spare props
Spare tools
Metric allen keys
Socket set
Pliers (flatnose + needle nose)
USB-C cable (short & long)
Soldering iron + heat shrink + spare cables
Power supplies for ground station computer
Ground station computer
Spare bolts
Radio Controllers
Mission plan clear
flightline roles assigned
Communication hierarchy established
Incident procedures & roles in-place & briefed to all flightline team members
Timeline for day-of clear
Battery charging plan, equipment management plan clear.
Transportation clear
Incident Procedures
Flight Test Timeline
Date/Time
Action
Notes
Date/Time
Action
Notes
1030
Left Warg Bay
Was happy
11:08
1-1
11:10
1-1.5 Anni shows controlled descent
11:12
1-2, @ 20m
11:17
1-3
11:20
2-1
11:27
2-2
Noticed drifting, position and yaw
DEBRIEF
Noticing losing compass, and then position
Card 1
Success. Noticed yaw impulse on takeoff, and during some phases of flight. Looked like compass re-alignment, about 30-45 degrees jerk, no continual rotation noted.
Had hard-ish landing on 1-1, PIC instructed to land softer in future.
Card 1-1
Only desired yaw (from pilot) logged.
Card 1-1.5
Yaw impulse shown on logger
Event coincides with EKF_YAW_RESET.
Card 1-2
Also shows EKF_YAW_RESET on takeoff
Card 1-3
This is the first time PIC (yuchen) noticed yaw reset errors.
“This is the first time I noticed yaw errors. You would go fast and then at the end of your motion you would have a small ‘twitch’, and that would cause you to lose orientation of the drone. Then you would have to check the FPV cameras for orientation” - PIC (@Yuchen Lin )
Noticing that after a high speed section (orange “crest”), yaw deviation tends to occur.
Graphing motor outputs shows that multiple motors are hitting “minimum” control limits as the drone slows down.
Card 2
2-1 successful. Lost orientation. Recovered with FPV
Card 2-1
Flew around the forest, trying to detect LTE dropouts.
“Noticed yaw inconsistency, lost orientation around intersection between dirt/grass patch, likely on dirt. Hard to tell” - PIC (@Yuchen Lin )
Card 2-2
Noticed drone was losing position hold, drifting when off sticks. Noticed drone was yawing when off sticks.
Same issue with vibe&speed correlation
GPS data lines up, even when synthesized data jumps around: