X bracing is easy to see when shining a flashlight under the arm since it extends from corner to corner.
Be careful, there are 3 types of shell, the old one everybody now about, the second one whit reinforced but without the X reinforcement in the middle of the motor mount, and the last one with the X reinforcement, which is now listed as new on the DJI web store. The best way is to remove a motor and look for the X in the middle of the motor mount
Just keep looking for crack, if you start having them, you will need to change your shell some time via warranty or DIY
Do you have the old motors, that you did this test with?Did another couple of flights today. Far and high, 2 kms away, two directions, non stop movement until landing. After this 15 minute flight there was almost no heat on the new motors. If heat added to the cracking issue, it certainly won't be a problem with these new motors. Time will tell. But I am running zip ties for the two arm screws. Too easy to not do and almost invisible mod if you use clear zip ties.
I sent back an older model p3a and just received my new one from DJI direct today. Definitely agree when it comes to the heat on and around the motors as well as the battery.Did another couple of flights today. Far and high, 2 kms away, two directions, non stop movement until landing. After this 15 minute flight there was almost no heat on the new motors. If heat added to the cracking issue, it certainly won't be a problem with these new motors. Time will tell. But I am running zip ties for the two arm screws. Too easy to not do and almost invisible mod if you use clear zip ties.
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