This is an analysis of the video using the Tracker video analysis program. I used the wingspan to calibrate distance, set the x-axis along the aircraft's track, and used the starboard engine to track the motion. I had to interpolate some frames when the aircraft was hidden behind the tree so take the middle of the graph with a grain of salt. There were also repeated frames in the video for some reason. FWIW, this is the result. Analysis shows that the ROD appears to change from over 200 m/s to just over 100 m/s towards the end of the sequence. Another source of error is using the wingspan to calibrate because the aircraft is banked relative to the camera.
