For the first six years, the aircraft operated strictly at night, compressing the intensity of realistic combat scenarios into increasingly demanding training missions. Attention is given to evolution of the training program, introduction of flight simulators and the formation of formal USAF operational squadrons. An overview is presented of the early development of the F-117 fighter and the evolution of studies to develop fighter aircraft with significantly reduced radar detectability. One significant breakthrough was the concept of reducing the complex shape of a traditional aircraft to a finite set of 2D surfaces, thus facetting, or creating a 3D aircraft, not out of smooth, gracefully curved surfaces, but out of a collection of flat panels. A review is presented of the utilization of computer models for stealth design toward the ultimate goal of designing and fielding an aircraft that remains undetected at any altitude and any range.
Attention is given to the advancements achieved in computational tools and their utilization.
An overview is presented of the various factors involved in the design of aircraft incorporating stealth technology. Consideration is given to coatings and absorbers, attenuation by cancellation, component design, the effects of panel edges, and the reduction of IR radiation. Ohio State Univ., Cleveland. Dept. of Aeronautical and Astronautical Engineering. The objective of this design project is to develop the hypersonic reconnaissance aircraft to replace the SR-71 and to complement existing intelligence gathering devices.