most of us can't fly without an FD
I've been flying on DC-9-32/33/34/51 for five years - the FD was almost unusable and the primary horizon looked like a RJ100 standby horizon. We flew ILS approaches as monitored approaches to the minimum in dense fog and survived it:
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Ours didn't have any navigation box, just NDB, VOR, DME & ILS...
I think every pilot flying those planes should be able to carry out a line-up and an ILS approach to the minimum with those standby instruments and a ILS LOC and GP indication.