Mirek6
 Second Officer
Flight distance : 609724 ft
Canada
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Alex,
Most excellent file and tips! I saved it for myself as a reference.
This is something which we really do appreciate – a set of tips and cautions in one place for easy reference.
My feedback:
Most of your specific instructions do not apply to Spark (but you do say that it is for Inspire or Phantom). Perhaps adding at the beginning of your tips that some specific instructions may not apply to Spark or Mavic may be good. Or perhaps say that your screens are Inspire or Phantom specific.
Chapter 1
You did confirm what I am saying about need for calibration when travelling long distances and you eluded in simple terms why: “ it stores the data and assumes that these forces are normal for the current position and will be consistent throughout the flight.”
Your wording is not scientific, simple and the recommendation summarizing them is correct.
I would add the following to make your description and recommendation complete:
Due to the delicate nature of Spark’s compass, it can loose its calibration if Spark is exposed to strong magnetic interference (for example if you put Spark in the vicinity of your car subwoofer when driving). DJI GO app may or may not detect problems with compass calibration. Be vigilant for any “compass error” or “yaw error” warning messages. If you see such errors during flight and there is no obvious source of interference, re-calibrate your compass (you may want to re-calibrate IMU as well) – just to be on the safe side.
When you calibrate your compass, turn Spark slowly – do not rush. Let the magnetometer do its work correctly and precisely.
Chapter 2
In your recommendations for IMU calibration you say: “ Each foot can be adjusted by placing pieces of paper underneath”.
This is not necessary (but will not hurt either). Yes – I know the people asked and discussed this. However, when you calibrate IMU you calibrate it in each of 3 axis. When you put it on the side and the prop arms position cause the Spark to angle a bit it is OK because IMU, at that moment, measures different plane – horizontal plane along Spark’s axis and not the vertical plane which is slightly skewed.
Chapter 4
You say: “It is important to land with reserve power, because if something goes wrong and you are forced to delay the landing it is necessary enough time to find a new landing spot and solve the problem.
“
I would add for completeness – “Remember to account for the wind. If your return home is against the wind it may take longer time, use more battery power and you may not make it back. RTH sequence does account for wind, but be extra cautious.”
Chapter 6
For Spark I would recommend to set “RTH at current altitude”. It prevents Spark from landing on the spot when less than 20 metres from HP. I have seen cases on this forum where Spark landed in water when RTH was invoked because people did not understand how RTH works. This is just extra insurance policy.
Chapter 7 does not apply to Spark
Chapter 8
When you set mobile in air mode you have no access to map. When you do so, cache the map before you fly.
Chapter 9 does not apply to Spark
Chapter 9 (again – mistake in chapter numbering) – talking about propellers
I advise against using third-party propellers. Propellers are too important a part of Spark. I do err on the side of caution.
Chapter on other useful things
I like UAV Forecast application (you did not mention it) – highly recommended.
In your travel with a Drone on a plane chapter I would add that some airlines do require that lithium-ion polymer batteries are discharged to 20-30% of their capacity before you can take them on the plane.
Mirek
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