You may have your props suddenly popped out (gone away from the brushed motor shaft) during your flight and your quad definitely fall down...
The dental floss is a well-known technique that many people use and I can confirm: IT WORKS PRETTY WELL ;-)
Here is my technique on video to prepare in advance your props with dental floss inside the propeller and here you are ready to fly in the field!
Your need =
1 needle
1 lighter
Many propellers
1 plier
Some dental floss
You won't need any toothpaste héhé just bring your floss and your quad ;-)
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