liningiv
lvl.4
Flight distance : 329409 ft
United Kingdom
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I have been involved in the maintenance and design of Aircraft aiframes and Aero engines for all of my working career. One tool that is in constant use is called Health and Usage Monitoring system HUMs. This is where each aircraft and engine has each of it's flights, duration and fatigue recorded over it's entire life. These figures are used to continuously compare the predicted life of the airframe and components with the actual life recorded in the real life usage, so that the two can be correlated and confidence in the systems for life monitoring can be improved and refined.
DJI has provided us with the starting point for a similar study on our P3s, i.e. Flights, Total flight duration, and distance flown all all recorded on the GO! App.
To this we could collectively add our own experiences of failures. This list could contain the following:
Body cracks ( lower body to upper).
Body Cracks ( lower body to motors).
Landing gear cracks.
Props broken or cracked, or replaced.
Failure of motors.
Failure of ESC.
Failure of Camera.
Failure of Gimbal.
Failure of SD card.
Failure of contoller.
Battery life.
Also conditions of flight could be recorded such as coastal, mountainous, desert, mixed.
Minor crashes.
And ultimately, and sadly, fatal crashes.
If all successful pilots with over 100 flights, this number will indicate that you have no tree magnetism, nor suffer from the did not RTFM affliction, would be willing to send me thier data to include the above, and then update their usage every 25 flights, we could collectively and over time build up a database of when, if ever, we could expect any failures, or if there is no pattern of say a motor burning out after 450 flights or 300 miles of flight, that would give us a collective warm feeling about the design and reliability of our craft. If on the other hand most people who attain 600 flights have problems with ESC or battery down to 40% max, then this could be a good indication to the whole community of what to expect if you are approaching these milestones.
I can start the ball rolling with my own figures:
Flights 112
Time 14 hr 42 min
Distance 84 Km.
Faults.
Single crack to lower body to upper body screw hole after 74 flights.
If anyone thinks of any more failure modes or a different way we can record this then please comment.
Perhaps P3 Serial numbers, and date of purchase could also support a trend, if one exists.
I have posted a template for any users with 100+ flights to use if they are interested in this excersise.
Thanks for you time.
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