I've been getting ready to do a series of streaming sessions on Microsoft Flight Simulator 2020 that demonstrate the extreme limits of IFR capability. With stuff like the G1000, the Cessna 172 will readily fly itself all the way to the runway if you let it, which is great for safety but not terribly exciting to fly.
There's two aircraft in particular that seem to be barely IFR capable, and I'm interested in flying them IFR.
The Cessna 152 doesn't have any glass in it, just the old school paired nav radios with VOR instruments (and a separate ADF radio) - it doesn't even come with DME even though the real thing usually does. I've sorted out how to locate myself using two VORs, and there's obvious approaches I can fly without DME. The ILS/LOC RWY 11 at Portland, Maine, for example, lets you substitute using the 2nd nav radio to detect various fixes by referencing the Kennebunk (ENE) VOR.
Enter the Robin DR400/100 Cadet - which has only a single nav radio/instrument.
I'd love to really stress-test IFR flight in the thing, but I have no idea how to even look for an approach (precision radar aside) that would be available to such a craft. Is that plane basically vectored visual approach or bust? Or is there something I'm missing when looking at approach plates?