The flying club that I am in just purchased a second 172, a really nice
plane, new interior and paint and a nearly new STCd 180hp engine.
Anyway, it has a IImorrow (or Apollo?) 2001 NMS GPS installed. It is
not IFR certified, but pages I've found about it online seem to indicate
that it can be. Does anyone know what exactly is the difference between
a certified and non certified install (other than $$$)? What would be
necessary to make it certified for IFR operations?