This Baron was doing IFR Multi training or a check ride. 8 kts @ 6000. Probably VMC demo!
Looks like a training flight all right.
Ground speeds are notoriously off when the aircraft is turning. FA only updates positions once every minute, ground speed is calculated from the straight line distance between those two points. If the airplane is practicing steep turns, which is what it looks like to me, it may be practically over the last updated position making it look like a helicopter.
John in Saudi
Note that we don’t calculate groundspeeds, the FAA does, but they seem to have the issue described when turning.
That explains it, they are government calculated ground speeds.