Depending on the localizer accuracy, the 'ole L1011 will track the centerline plus/minus six feet, either side.
Not too bad for an old design.
Thanks. Hard to find answers sometimes to even basic questions via a web search without specific search terms.
Still impressed to know that even L1011 autopilots could respond well enough for high centerline accuracy during even high-speed cross-wind gusts.
The airlines/avionics manufacturers don't seem to upload much basic performance data of their aircraft and systems.