Horten H IX V3. Horten Ho 229 V3 is the only extant example of the world's first all-wing jet aircraft. Built in Germany during World War II, the Horten Ho 229 promised spectacular performance. The German air force (Luftwaffe) chief, Hermann Göring, allocated half-a-million Reich Marks to the brothers Reimar and Walter Horten to build and fly several prototypes. Numerous technical problems beset this unique design and the only powered example crashed after several test flights.