Originally Posted by 212man
Nothing wrong with SFENA
As long as it was working! I remember being introduced to SFENA in the Duri IFR 212 PK-HCK. Training Captain explained its function and we engaged Altitude Hold. After we decended through some 300' he agreed that perhaps it was not working properly today.
However when it worked and with some good guidance from the Trainers it made Single Pilot IFR a lot easier.
And of course there was the one-off SFENA fitted in G-AVII for all those CAA single engine IRTs over the years.