The B-70'S New Structural Design Concepts for Mach 3 Temperatures 620374
The B-70 is becoming a reality through an intensive design and fabrication development of a heat resistant, fuel insulating, primary structure, which permits long range cruise at Mach 3. The novel design features machine fusion welding for joining brazed, heat treated steel honeycomb-panels into a homogeneous, compression resistant structure, with local stresses and shear flow based upon minimum strain energy. With a background of continuing metallurgical research and development of fabrication techniques throughout its design and construction, the first stainless steel XB-70 is being readied for flight by year's end.
