Originally Posted by
Stuff
I'm told that the matting that was thrown up was not actually the helipad but was a roadway for ambulances to get to and from the helicopter to transfer patients. The smooth surface provided by the matting is required for patients with some injuries eg spinal fractures. This explains why the matting is behind the Osprey as it starts to lift.
Well, that could dispell some posters narratives and pet theories.