This appears to be a dynamic rollover incident due to improper/loss of aircraft control. To be determined is the reason for the improper control inputs (incapacitated pilot, control interference, hydraulic hard-over, control system failure, etc.) A contributing factor appears to be the selected landing direction vs. wind azimuth, which would exacerbate the forward pitch due to the wind’s influence upon the horizontal stabilizer (4” wider on the EC-130 vs. AS-350) and aft landing gear fairing. Potentially, a forward CG could have had increased the susceptibility to the forward roll-over, as the EC-130 has an expanded forward CG range as compared to the AS-350. Of note, is that while the landing gear on the EC-130 gives the appearance of being further aft when compared to the AS-350, they share virtually the same forward point of contact.