Just stumbling upon the thread guys,...but I recognize that ugly thing.
That is a Blohm&Voss BV 222 C captured by the US at the end of WW 2.
There were rumours that the only prototype of the even bigger BV 238 flying boat (destroyed in the last days of the war by USAAF fighter bombers) was destined for bringing Luftwaffe ´Reichsmarschall´ (the fatty one) Hermann Goering and some of his looted wealth right into a cozy Latin American exile (presumably Argentina).