Wolfman
lvl.4
Flight distance : 405659 ft
Australia
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Hi to all,
I share with you a strange situation that occurred a few weeks ago. Any ideas from the forum as to what could have occurred here is greatly appreciated and might even assist others in this scenario
1. Sunrise shoot, weather fine, nil wind, low solar, elvation 2000'
2. Pre take off checks, Compas cal and imu check performed.
3. Aircraft status "Safe to Fly ATTI (no gps)....no signal at all
4. As the flight was no further than 60m from my location, I had no issue in flying ATTI mode. Out of habit, Recorded home point manually even though there was no gps
5. Took off, aircraft control check was fine.
6. Flew 2 passes of the area without issue. Returning for a 3rd pass, controls felt a little unresponsive compared to usual response rate
7. Decided to return aircraft to investigate.
8. Aircaft now approx 3m in front of me and 3m up. Struggled to stabilise it to lower the landing gear, small control inputs seem to produce a far greater effect on the aircraft.
9. RC SIGNAL loss displayed on status screen, aircraft powered up to what sounded like full power and shot off at a climbing angle of around 30 degress
10. Stick input on controller gone, I could only watch it fly away until it hit a tree around 20m away, aircraft destoyed
SO...........
(a) Where was it planning on going without GPS?.
(b) A power cycle is meant to clear previous home point location....is this not the case?
(c) If power cycle clears home point, then what is the procedure for RTH if launch occurs without GPS? ( as per an inside flight)
(d) RC signal loss with aircraft 3m away........ how could this be possible?
(e) Aircraft is designed to fly indoors and status would say as per my situation "Safe to fly atti, non gps" .....so is this correct or should we not fly without GPS?
(f) RTH , if aircraft received GPS at the point of losing RC signal AND the previous home point was still recorded, why did aircraft not climb vertically to pre set altitude of 30m as per RTH documentation?
Aircraft had flown perfectly for 20 previous flights, software update ver 17 performed 2 days prior to this event
Any thoughts on this is appreciated. I also think that the questions above if answered may enlighten us all , DJI have the flight logs but I have had no response from them.
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