Opinion
The Chosun Ilbo on MSNOpinion
1,500 days of life-risking flights: The 'sky developers' behind KF-21's ascent
All their flights were "firsts." Extreme aviation tests simulating combat scenarios at Mach 1.8, 50,000 feet altitude, air-to-air missile launches, and mid-air refueling. Though they sometimes had to ...
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