I came across the AC 90-100 compliance table on the FAA website and had a couple questions about using a KLN 94 under IFR:
1. The table says that the KLN 94 cannot be used for VOR substitution (although others such as the G430 can). Is this true and why? Or is the table just dated?
2. If the KLN 94 cannot be used for VOR substitution, can it still be used as an alternate means when the underlying VOR is functioning based on AC 90-100a?
Thanks.