Originally Posted by
4468
That ‘fly past’ was flown at considerably higher speed than the slowed down video suggests. As we all know, rotor downwash trails the aircraft. The camera movement does not allow sufficient dwell time on likely areas to determine whether any downwash was present.
Yeah, except that for a considerable portion of the video the area behind the aircraft is visible. Also, how much does downwash "trail" at 15ft exactly? Also the long video shows the aircraft departing into the middle distance which is clearly long enough.
Not a slam dunk, but suspect.