Originally Posted by
Tay Cough
Am I being picky? Radar is radar. The run in WAS along the line denoted by the radar hits (obviously?). According to the AAIB video, the green line shows where it should have been.
The pull-up was next to the bend in the river. The radar doesn't lie.
Neither does the camera.
Radar can easily 'lie' dependent on its scan rate and the rate of change of vector of the aircraft. I have seen aircraft apparently orbiting left on radar but actually orbiting right - due to simple stroboscopic effect. Similar "lies" (artifacts is a better word) are possible with cameras
https://www.youtube.com/watch?v=yr3ngmRuGUc
Radar maps can often be 'adjusted' to match (or not match) the physical position of airports, it was only after ADS-B was brought in that some misalignments were found at some airports. With awareness of those possibilities it is also important to ensure that the raw radar data is considered as processing can also add similar artifacts