[News Today] The Largest and Fastest American Mega Bomber Ever Built : Super Weapon Russia Can’t

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[News Today] The Largest and Fastest American Mega Bomber Ever Built : Super Weapon Russia Can’t
Military Update News : The Largest and Fastest American Mega Bomber Ever Built : Super Weapon Russia Can’t Seem to Match

The Valkyrie was designed to be a high-altitude Mach 3 bomber with six engines. Harrison Storms shaped the aircraft with a canard surface and a delta wing, which was built largely of stainless steel, sandwiched honeycomb panels, and titanium. The XB-70 was designed to use supersonic technologies developed for the Mach 3 Navaho, as well as a modified form of the SM-64 Navaho’s all-inertial guidance system

The XB-70 used compression lift, which arose from a shock wave generated by the sharp leading edge of the central engine intake splitter plate below the wing. At Mach 3 cruising speed, the shock wave attached along the wing leading edge, preventing the high pressure behind the shock front from leaking up over the wing.The compression lift provided five percent of the total lift.[ The wing included inboard camber to more effectively use the higher pressure field behind the strong shock wave. Unique among aircraft of its size, the outer portions of the wings were hinged, and could be pivoted downward by up to 65 degrees, acting almost as a type of variable-geometry wingtip device. This increased the aircraft’s directional stability at supersonic speeds, shifted the center of lift to a more favorable position at high speeds, and strengthened the compression lift effect.With the wingtips drooped downwards, the compression lift shock wave would be further trapped under the wings.

The XB-70 was equipped with six General Electric YJ93-GE-3 turbojet engines, designed to use JP-6 jet fuel. The engine was stated to be in the “30,000-pound class”, but actually produced 28,000 lbf (124.6 kN) with afterburner and 19,900 lbf (88 kN) without afterburner. The Valkyrie used fuel for cooling; it was pumped through heat exchangers before reaching the engines.[25] To reduce the likelihood of autoignition, nitrogen was injected into the JP-6 during refueling, and the “fuel pressurization and inerting system” vaporized a 700 lb (320 kg) supply of liquid nitrogen to fill the fuel tank vent space and maintain tank pressure.

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