Core Viewpoint - The successful maiden flight of China's first stealth fighter jet, the J-20, marks a significant milestone in the country's military aviation capabilities, ending the era without stealth combat aircraft [1]. Group 1: J-20 Overview - The J-20 is China's first domestically developed fifth-generation stealth fighter jet, featuring high stealth, high situational awareness, and high maneuverability [5]. - The aircraft is designed to replace older third-generation fighter jets like the J-10 and J-11, positioning itself as a next-generation heavy fighter model [5]. Group 2: Technical Specifications - The J-20 has a length of 20.3 meters, a wingspan of 12.88 meters, and a height of 4.45 meters [5]. - It can achieve a maximum speed of 2.5 Mach and a maximum altitude of 20,000 meters, with a single pilot capacity [5]. Group 3: Strategic Importance - The J-20 enhances the Chinese Air Force's combat capabilities by establishing air superiority and creating opportunities for subsequent military operations [3]. - Its stealth capabilities allow it to penetrate enemy air defense systems effectively [3].