Kloo Gee
First Officer
Flight distance : 16783757 ft
United States
Offline
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RENEKLETT Posted at 2017-9-5 08:06
Thank you very much for your reply Kloo Gee - every post is nice but i watched many Youtube Vieos already before i bought the Spark. I did the tutorial and i have also a P3 and a P4 that i thought i know everything :-( but i keep on the statement that the Spark "Fly Away" was not a normal behavior.
RENEKLETT,
I have always heard that almost every man-made disaster that has happened is not due to a single action or failure, but is almost always due to a whole chain of events that occurred that lead up to the disaster.
I think if you actually watch the videos instead of dismissing them 1 minute after they were posted, you will see several steps I cover where I talk about things I check before I put my Spark up in the sky. Doing the whole process I describe does not guarantee you will not have a fly away, but I think it puts you in a good position to stop the chain of events that could possibly lead to an eventual fly away.
Just as two examples.
1) You took off in ATTI mode. This is something discussed in the video as something you should never do. If you do, I think it greatly increases the possibility of a negative outcome dramatically. Had you not done this, you could have stopped the chain of events before they became a chain.
2) I discuss validating the home point that the Spark records and double check it in the map to verify that it looks like the appropriate location you would want your Spark to RTH to in the case of something going awry. Since you took off in ATTI mode, there is no way that you could have checked this. If you don't check this, how can you know where it will go to in the case of a disaster? This is another point in the chain of events you could have stopped the chain at prior to the actual fly-away happening.
3) I discuss the RTH settings and double checking them to be sure they are set for the environment you are going to be flying in. One of the settings determines if it raises up to a specified height when an RTH is initiated or not. In your pre-flight, you should adjust these settings to be appropriate for the environment you will be flying in. In this case, it sounds like this setting was too low and allowed the Spark to fly into a tree while it was doing the RTH. This is another place in the chain where it could have affected the potential outcome.
Having said that, the actual fly away itself may very well have been out of your control. However, I think there are points in the chain leading up to it that you may have been able to influence to lessen the possibility of the fly away occurring.
I still think if you take a few mins to take a look at the videos instead of dismissing them saying you already know everything, you may be in a better place once you fly again.
I'm really sorry it happened and I really hope you are able to find some way to be able to get your Spark back and determine the actual cause of the event.
Best regards,
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