Why was this Helios airways 737 silent for over 2 hours ... spotted in the cockpit by the fighter pilots who intercepted the aircraft? Was this terrorism, or something else? This episode explores ...
Space.com on MSN2d
NASA's X-59 'quiet' supersonic jet aces key 'cruise control' test ahead of 1st flight"This test confirmed that all components — software, mechanical linkages, and control laws — work together as intended." ...
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