AI Mark IV radar
Radar, Aircraft Interception, Mark IV (AI Mk. IV), also produced in the USA as SCR-540, was the world's first operational air-to-air radar system.
Radar, Aircraft Interception, Mark IV (AI Mk. IV), also produced in the USA as SCR-540, was the world's first operational air-to-air radar system.
Radar, Aircraft Interception, Mark IV (AI Mk. IV), also produced in the USA as SCR-540, was the world's first operational air-to-air radar system.
Source: Wikipedia "AI Mark IV radar" · CC BY-SA 4.0
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