Help analyzing plane crash

Hello, I was testing a new airplane the other day, the maiden flight worked fine, no issues, landed changed battery and went again on the second flight I launched in stabilize mode and things were going fine so I switched to FBWA I had also done this on the first flight and had no issues but when I switched this time I noticed the plane started to pitch downward and I was fighting to keep it level, I switched back to stabilize and gained altitude and flew for a little while longer before it all of a sudden nose dived into the ground. 

Im uploading the flight data and I would like some assistance in analyzing if there is any valuable data linking the actual board to the crashing of the plane.

Pixhawk board, digital airspeed,gps etc.

I appreciate any input

Thank You3691165683?profile=original253.kmz253.BIN.gpx253.BIN3691165803?profile=original

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Replies

  • If you plot RCIN.C2 and RCOUT.C2  , you can see that when you switch to stabilize, you see that the elevator output follows input nicely - so the servo was at least not commanded to do a dive.

    What I don't understand, is that it seems like you not only applied elevator-up - but also a lot or aileron, depending on airframe, and control surfaces throw, this could make it impossible to recover.

    Aileron are logged as C1, and does not indicate any software/electronics failure.

    It could be as simple as a linking rod slipping, or rudder being partially loose.

    • thanks Andre, that was what I thought happened but want to make sure, I lost my Canon SX260 camera and a bunch of 3D printed parts, ($650.00 crash) but I will do it again and this time I will make sure all the rods are tight for sure. I was very pleased with the maiden flight, I knew was something stupid and wanted to confirm before I built another one..will fly without the camera this time...if everything goes smooth I will get another another one. Really appreciate your help. Thanks again

This reply was deleted.

Activity

DIY Robocars via Twitter
RT @_JonMyer: 🚨Attention DeepRacer's including #UndergroundDeepRacer🚨 Check our our LIVE stream that including @IAM_dbro Take a few moments…
Aug 5
DIY Drones via Twitter
RT @MarvelmindMaxim: Extreme precision for 60 swarming robots. #marvelmind #autonomousrobotics #robotics #swarmrobotics #rtls #ips #indoor…
Aug 3
DIY Drones via Twitter
RT @MarvelmindMaxim: Precise (±2cm) tracking for racing boats and autonomous boats. Works outdoor and indoor. #autonomous #AutonomousVehic…
Aug 3
DIY Drones via Twitter
RT @MarvelmindMaxim: Helping PixHawk folks to fly autonomous quadcopters using PX4 and ArduPilot. https://marvelmind.com/drones/ Equally suitab…
Aug 3
DIY Robocars via Twitter
RT @chr1sa: The @DIYRobocars @donkey_car virtual AI car race is starting in 15 minutes! Watch it live on Twitch https://www.twitch.tv/mossmann3333 htt…
Aug 1
DIY Robocars via Twitter
RT @chr1sa: Don't miss our monthly @DIYRobocars @donkey_car virtual AI car race tomorrow at 10:00am PT live on Twitch. Head-to-head racing…
Jul 31
DIY Robocars via Twitter
RT @sparkfun: Our completed tutorial on building an @NVIDIA Jetson Nano-powered @Sphero RVR gets your bot up and running via teleoperation…
Jul 30
DIY Robocars via Twitter
RT @SmallpixelCar: Freeway test https://t.co/4V5tV9lhIP
Jul 29
DIY Robocars via Twitter
Very small autonomous cars racing, thanks to an overhead camera: https://control.ee.ethz.ch/research/team-projects/autonomous-rc-car-racing.html
Jul 29
DIY Robocars via Twitter
Jul 29
DIY Robocars via Twitter
Jul 29
DIY Robocars via Twitter
RT @chr1sa: Don't miss our virtual AI car race this Saturday! Real developers + virtual cars =🏎️🏎️🏎️ Head-to-head battles with thrills, sp…
Jul 28
DIY Robocars via Twitter
Jul 27
DIY Robocars via Twitter
RT @usashirou1: Jetson nano by Isaac Kaya #jetson https://t.co/Mu1N0CyQkN
Jul 23
DIY Robocars via Twitter
RT @GPUsolution: JetRacer mady by Iflytek company #JetsonNANO #Nvidia https://t.co/MimTymIwge
Jul 23
DIY Robocars via Twitter
RT @openmvcam: I love this: Mega or Mini? Image Classification on the 1MB OpenMV Cam H7 by Ish Ot Jr. in OpenMV, Edge Impulse, Internet of…
Jul 23
More…