AIRWOLF...
As long as I can remember, I've had a fascination for helicopters. Probably because we lived a few miles from the US Coast Guard airport and a few times an hour, helicopters would pass over my house to and from Miami Beach where they patrolled.Airwolf was a TV series in the 1980's about an advanced prototype supersonic helicopter with stealth capabilities. I watched the show for the flight sequences... not for the actual plot or mediocre acting.
The aircraft actually exists (without the technology) for TV filming purpose.
Many of the stunt scenes were done with radio controlled models, and not full size aircraft.
Notice, the 2 black objects as part of the rotor head were needed as stability in the models.