Ah, currywurst is wonderful. But some of these little airfields harbour some really quite good restaurants. For example, Aachen (AAH) and Mülheim/Essen (ESS). And yes, for a freak like me, most of these little airports have (probably unofficial) 3-letter IATA codes! But there seems to be a divergence of which code is the “right” one because sometimes I find them at Wikipedia or other online sources, then Flightradar24 lists a completely different one. I tend to trust Flightradar24 as a source of information.
I have a flight scheduled tomorrow at Lausanne Blecherette (QYL) airfield (although obviously these are not “scheduled” flights as such). Plan is to fly over the huge Lac Léman, the Dents-du-midi mountains and land at Sion (SIR). But it’s not going to happen, the weather is really atrocious and getting worse at the moment.