Other media reports/photos indicate that the first contact might have been with the trees that are closer to the road.
Ok, that was not mentioned in the video. My assumtions were that the contact with the straw bales made the helicopter to flip over during a flare or so. This could explain the obviously heavy nose down impact.
Here in the second picture theres one straw bale, which was turned over and some parts of the wreck in front of.
http://www.manchestereveningnews.co....orfolk-6835790
skadi