Post-WW2 the W Germans were not allowed to build aircraft for 10 years and the E Germans-never. However, a few German engineers that were not taken by the US, Britain, France, and USSR did make it to places like Egypt and Argentina. Focke-Wulf's designer Kurt Tank, like Reimar Horten, went to Argentina to further develop a version of the incomplete Fw Ta 183 Huckebein of WW2. Argentina lacked proper industry, specialists, and materials so even though the first prototype flew in 1950, it soon crashed and the program became protracted over 9 years. The Pulqui II would have to use a RR Nene 2 engine, but incorporated a 40o wing sweep, swept tail, and was to be armed with 4x Hispano 20mm cannons. With a speed of 652 mph and climb of nearly 6000 fpm, it was modern in 1950 but obsolete by 1959. The Germans left and Argentina could not afford to start series production, so a lone example now resides in a museum...

http://www.aviastar.org/pictures/argentina/fma_iae-33.jpg