Has anybody considered the posibility that the gear was retrackted to early and that the aircraft just setteled down on the runway? Not familier with the type, but could it be that the gear handle was in the up position on the ground by mistake and that as soon as WOW occured the gear retrackted and the tail hit followed by the rest of the aircraft?
We have seen the above scenario on the F-16 where the flaps are retrackted automaticly with the gear, and if this is done to early ie. just after rotation, the reduced lift will cause the aircraft to sink back on the runway.