Here’s 720p footage of the same plane with G0Pro cam.
Four segments, each about six minutes.
1. Forward view from take off to landing.
2. Rear view take off & landing.
3. Rear view take off & landing
4. Forward view take off & landing
Amazing... In straight line it would be approximately a 45 mile flight.
They picked a perfect day for filming.
Got a bit queasy watching the horizon twists and turns.
Your link, 16:25 close up of the model shows some similarity to the SR-71.