I think range is not important in this. We need to research the explosives as this is needed. Readind some where that when Kursk submarine which was at the bottom of the sea due to accident. When American approaches that they found missilies/torpedoes having explosives yields up to nuclear warhead.
Congrats China. :china::china::china:
Now lot of threads on PDF will be surfaced with the Title "We need this Unmanned Helicopter" :laughcry::laughcry::laughcry: