Originally Posted by 411A
...One wonders...what was 'wrong' with the old one, anyway?
Nothing was "wrong" with the old one, but it would have been very difficult for mixed fleet operators to have a Series 300 AFM written in CAR 3 format and a Series 400 AFM written in GAMA Specification 1 format. That would have made it very difficult for the mixed fleet operators to establish common procedures for both Series.
The two Series (300 and 400) are, operationally, essentially the same aircraft. The principle difference is that the Series 400 is an all DC aircraft (no AC electrical system), and it has a contemporary integrated avionics suite (Honeywell Primus Apex, the same as the new PC-12). The speeds, performance figures, and all the normal, abnormal, and emergency procedures that do not relate directly to avionics or AC electrical are the same for both the Series 300 and Series 400.
Michael