The development of the Northrop B-2 Spirit was started in 1978 and the U. S. Air Force originally wanted 133 examples, but in 1991, successive budget cuts have reduced the number to 21 aircraft. The prototype flew July 17, 1989, and the first production Northrop B-2 was the 393rd Bomb Squadron of the 509th Bomb Wing Whiteman AFB, Missouri, on 17 December 1993 Delivered.In the design of the Advanced Technology Bomber (ATB), such as the B-2 project was originally known, Northrop decided on all-wing configuration from the beginning. Flying wing supporters have, as Hugo Junkers, and Jack Northrop, as long as aviation itself exists, arguing that a flying wing will carry the same payload as a conventional aircraft, while weighing less and with less fuel . The weight and drag of the tail missing, as the weight of the structure that supports them. The structure itself is much more effective because the weight is distributed over the wing of the aircraft, rather than concentrated in the center.Northrop experimental piston engine flying wing bomber of the 1940s, from which ideas for the B-2 were derived, was designed around the area with the same and the same warload the Convair B-36, but two-thirds of the gross weight and also in two-thirds of energy. The company produced a prototype flying wing jet bomber, the YB-49, in 1947, but this had little influence on the decision to pursue an all-wing for the B-2, all the wings of the approach was chosen because he promised to conduct an exceptionally clean configuration to minimize the radar cross section, including the elimination of the vertical tail, with additional benefits such as load time and high structural efficiency lift / drag ratio Cruise effective. Outer wings have been included to balance the lift / drag ratio and to increase longitudinal sufficient time for the pitch, roll and yaw. Scan leader was chosen for its balance and its trans-sonic aerodynamics, while the overall market has been developed for the wing neutral form longitudinal (pitch) of the static stability. Due to its length, the aircraft had to produce ground to stabilize the low moments beyond the stable to positive recovery. The original design had ATB ailerons on the outer wing only, but as the design progressed, additional wings were inserted in-house, the B-2 is unique “double-W trailing edge. Is the front edge of the wing designed so that the air in the engine directed the flow from all directions, so that the motors operate at high power and speed zero. In trans-sonic cruise, air is decelerated from supersonic speed beforefaces hidden compressor F118 engines from GE.
A management processor stores Hande is in place for the B-2 is 22 730 kg of weapons. A separate processor controls the Hughes APQ-181 Synthetic Aperture Radar and the entrance to the display processor. The Ku-band radar has 21 modes, including mapping of the ground at high resolution. The B-2 lifts 260 km / h, regardless of the take-off speed. Normal operating speed is subsonic high-end and a maximum height of about 15 240 m. The plane is very agile, with handling characteristics of combat type. Buy Flight Simulator