Ho XVIII B  3 view     After being dissatisfied with the committee designed Ho XVIII A, Reimar Horten redesigned the flying wing Amerika Bomber. The proposed Ho XVIII B had a three man crew which sat upright in a bubble-type canopy near the apex of the wing. There were two fixed main landing gear assemblies with two He S 011 turbojets mounted to each side. During flight, the tires would be covered by doors to help cut down on air resistance and drag, a nose wheel being considered not necessary. Overall, the aircraft would have weighed about 35 tons fully loaded. Fuel was to be stored in the wing so that no auxiliary fuel tanks would be required. It was estimated that the Ho XVIII B would have a range of 11000 km (6835 miles), a service ceiling of 16 km (52492 feet) and a round-trip endurance of 27 hours. Although armament was considered unnecessary, Reimar Horten proposed that two MK 108 30mm cannon could be mounted directly below the cockpit. It was decided that construction was to be done in two bomb-proof hangers near Kala, which had concrete roofs 5.6 meters (18.4 feet) thick. In addition, extra long runways had been constructed so the aircraft could be test flown there too. Work was supposed to start immediately, and the RLM expected the Ho XVIII B to be built by the fall of 1945, which Reimar Horten reported to be impossible. At any rate, Germany surrendered two months later before construction could begin.

         Span: 40 m (131' 4")         Length: unknown          Max. Speed: 850 km/h (528 mph) 

Artist's conceptions of the Ho XVIII B in flight, notice the doors covering the landing gear tires....
Ho XVIII B artist conception Ho XVIII B  artist conception
Many thanks to Dr. David Myhra, who graciously sent me the above material (text and pictures)
from his new book, The Horten Brothers and Their All-Wing Aircraft, published by Schiffer.