When the An-2 appeared just after WW2 its biplane configuration was taken by western expert with some derision because of its backwardness, time have proved them utterly wrong.
“Annushka” (Annie in Russian) is, maybe, the “peasantest” of all USSR aircraft, and as a peasant it ought to be a able to handle a lot of chores. Do you need an high-altitude weather reconnaissance aircraft? equip an Annie with a turbo-supercharger Shvetsov Ash-62IR/TK engine turning an ultra cool scimitar-shaped prop, install a lovely bizarre cabin for the weather(wo)men just before the fin….and don’t forget those cute rear-view mirrors.
There’s a saying in my little village: Doubts about the weather?… ask a peasant.