Hmm, while searching for the designation of the An-2, I turned up this ugly bird...
Antonov An-3T Prototype
"A new life ahead? While many An-2 slowly decay due to the massive reduction of demand in the utility market, turbine converted An-3T 9801 promotes a reactivation and modernisation of the An-2 design (Moscow Zhukovsky, August 17, 1999)."
The AN-2 isn't fast, but it is big and it has amazing STOL capability. I watched one take off in a REAL short distance from Camarillo. Not as good as the Fiesler Storch, but the AN-2 can carry a whole lot more!
Yeah, its basically an American equivalent of Soviet Eraknoplanes, as GrG said, so thats things like the Caspian Sea Monster. Those planes have been around a while, I dont consider them unconventional...