"All NPAs have to be flown manually after MDA (by definition)"
Is that a HARD FACT, applicable to all aircraft?
If so, why did my 737-800 FCOM (yes, I read it a few times de facto!) quote a "minimum autopilot disconnect height of 158 ft"?
Stuck in my brain because I found it difficult to perceive when I was exactly at that particular height, so rapid do the digits in the radalt turn over!