Just a couple of minor corrections on the above postings. In two channel mode, the system is fail-passive, which means the FCC giving the lower control input/change is used (neither is master/slave - that's why both M/A lights are illuminated on the MCP). In single channel mode, she will fly you accurately on the ILS to the ground with no flare (not reduced flare), but because the 737 classic sim does not simulate hard landing properly, it feels like a reduced flare (ask me - did it yesterday). But then again this single channel capability of the 737 is nothing special, because I've flown down to 30 feet an ILS on autopilot (as a test in fine weather) in a Mooney 231, BE58, C421, PC12 and King Air 200. They can all fly you down to 30ft AGL without much difficulty.