DJI published common errors made by pilots based on many RMA cases. Analysing the flight data or so called black-boxes they listed a few common errors. We have made some changes according to UK regulations
1. CSC in the mid-air (Combination Stick Command)
Newbies often crash the drone by pulling the sticks to the down inner corners \ / or outside corners / \ these starts and stops the motors and should never be done whilst flying
2. Propeller shoots off
The self-tightening props should always be hand tightly screwed onto the motors (without exagerated force), and the prop locks placed (in the case of the self tightening props.
3. RTH Crash
If for any reason you lose RC signal, the automatic RTH (Return to Home function will kick in after 3 seconds of lost signal), guide the aircraft once you have retained signal and cancel RTH. Beforehand the RTH settings should have been set higher than local obstacles (trees etc). RC signal can be lost if flown beyond line of sight, behind a building, under a bridge etc this is against regulations and should not be done.
4. Auto landing far from home
Once your aircraft is out power, you will get low battery warning and 10 seconds to cancel the RTH. After canceling the RTH you still can keep flying, and safely land. However once your battery hits the critical battery level, the aircraft will start auto-landing, keep calm and guide the aircraft to a near safe landing spot.
It is not advisable to fly the aircraft on a newly charged battery, any battery errors should be corrected
5. Flying out of sight
This is against UK regulations, using FPV screen or goggles does not mean you are flying in line of sight, but in sight of the actual aircraft
6. Watching FPV and flying backwards
When flying backwards we don’t see the obstacles in the way aircraft via the screen, another reason to always have the aircraft in line of sight, and not fly exclusively looking at the screen, without an trusted experienced observer
7. Indoor flight
Very often flying indoors due to the low GPS signal aircraft can drift, so it is getting difficult for the non-experienced pilot to control it. Practise in ATTI mode outside in open spaces, to get the proper feeling of how to fly the aircraft without GPS
8. Failsafe and RTH
When the aircraft is out of the 20 meters radius from home point and there is a low battery level warning, it will ascend to the failsafe RTH altitude and then go home. Some pilots may get nervous and go land their aircraft manually without canceling RTH. But since the aircraft is out of the 20m radius from the home point, at that very moment before drone touches the ground it lifts up automatically to the failsafe RTH height, and flies to the home point. This can cause an accident due to the panic and los of control of the aircraft. Remeber to cancel the RTH if you have things under control to land
9. Bad environment
Fly in an opened space, far from the buildings, power line towers, sources of signal or electromagnetic interference. Situation awareness is very important.
10. Braking distance
The DJI products have braking settings adjust them according to your liking and learn to judge well the distance it brakes at just like we do with driving a car