North American XB-70 Valkyrie – A Supersonic Marvel
The XB-70 Valkyrie was a prototype strategic bomber developed in the 1960s by North American Aviation for the U.S. Air Force. Designed to cruise at Mach 3 (over 3,000 km/h) and soar at 70,000 feet, it was envisioned to outrun any threat—interceptors or missiles.
✈️ Key Features:
Length: ~186 feet
Wingspan: ~105 feet
Engines: Six General Electric YJ93 turbojets
Materials: Stainless steel and titanium honeycomb skin
Wing Design: Folding wingtips for improved stability at high speeds
Canard Configuration: Small forward wings for enhanced control
📚 Historical Highlights:
First flight: September 21, 1964
Only two prototypes were built
Used primarily for aerodynamic and propulsion research
One aircraft was tragically lost in a mid-air collision in 1966
Final flight: February 4, 1969
The image features XB-70A #1 lifting off with a TB-58A chase aircraft, which was a modified B-58 Hustler used to monitor and support test flights. The TB-58 could reach Mach 2, allowing it to keep pace with the Valkyrie during maneuvers

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