Core Viewpoint - The article highlights the commencement of the calibration flight for the newly constructed third runway at Changsha Airport, which is essential for ensuring the runway's operational readiness and safety for larger aircraft [1] Group 1: Calibration Flight Details - A Cessna 560 calibration aircraft conducted a flight over the new third runway at Changsha Airport to perform statutory calibration work before the runway's operational launch [1] - The calibration will involve high-precision measurements and validations of the runway's instrument landing system, navigation lights, communication frequencies, and flight procedures to ensure signal stability and reliability [1] Group 2: Runway Specifications and Impact - The new third runway is built to 4E standards, accommodating wide-body aircraft such as Boeing 787 and Airbus A330, thus supporting the expansion of medium to long-haul domestic and international routes [1] - Once operational, the third runway will work in conjunction with the existing two runways, significantly improving flight punctuality during peak hours and adverse weather conditions [1] - The addition of the third runway will enhance the airport's flight scheduling flexibility, better accommodating both international and domestic flight demands, and supporting the expansion of the route network [1]

Core Viewpoint - The new third runway at Changsha Huanghua International Airport is undergoing essential calibration to ensure operational safety and efficiency, supporting both domestic and international flight expansions [1][3]. Group 1: Runway Calibration and Testing - A Cessna 560 calibration aircraft is conducting flight tests over the new third runway to perform mandatory pre-commissioning checks [1]. - The calibration will include high-precision measurements and validations of the runway's instrument landing system, navigation lights, communication frequencies, and flight procedures [1]. Group 2: Runway Specifications and Impact - The third runway is built to 4E standards, accommodating wide-body aircraft such as Boeing 787 and Airbus A330, thus enhancing the airport's capability for medium to long-haul domestic and international routes [3]. - The new runway will operate in conjunction with the existing two runways, significantly improving on-time performance during peak hours and adverse weather conditions [3]. - The expansion of Changsha Huanghua International Airport is a key project in Hunan Province's 14th Five-Year Plan and represents the largest single investment project in the region [3]. Group 3: Passenger Capacity and Economic Significance - The existing T1 and T2 terminals are designed to handle approximately 20 million passengers annually, while the new T3 terminal, currently under renovation, aims to accommodate 60 million passengers per year [3]. - This expansion is crucial for enhancing Hunan's comprehensive transportation hub system and promoting high-quality economic and social development [3].