NorthernSky . .. .“If it did approach the stall, or if you did the same thing in a turboprop, for example, the Autopilot would be thrown out by the stick-shaker or stick-pusher”.. .. .Not everyone fly's the fancy stuff.... .In a bog standard turboprop with standard Autopilot experiencing icing conditions. Operating in ALT mode the A/P whilst trying to keep altitude slows the A/C down. With the stall warner being ices up by that time. What will happen? It’s a killer situation, which has cost lives. No automatic devices around....other then a shaken pilot.. .. .Love me feed me