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Old 4th Oct 2018, 02:15
  #11 (permalink)  
aa777888
 
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Originally Posted by casper64
And there, you are completely wrong!
...
The video damage you show is of a fixed wing, that was most likely travelling about twice or three times the speed of a helicopter if not more...
I'm not so sure I'm completely wrong. The first video of the drone shown above was at 238MPH, according to this link:

https://www.udayton.edu/blogs/udri/1...in-the-sky.php

So the two videos are roughly comparable if we assume the Cessna in video I posted was doing a typical Cessna Conquest speed.

However, I will agree that your argument about the density/compressibility of a typical LiIon battery has some merit. It would be interesting to see a more definitive study of the relative dangers of greater mass vs. higher density vs windscreens, rotor blades, etc.
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