Airspace空域分类的快速记忆法 Mar 4, 2016 6种空域如何记忆A (Always Above and Across the US, Absolute Control)B (Busiest and Biggest Airports)C (Communicate, Comply, Mode-C)D (Double-Duty, Designation changes)E (Everything else where there is control)G (Ground hopping my way!) 订阅我们的新内容 将最新的文章发送到你的收件箱. 你的 Email 地址 订阅 Now check your inbox and click the link to confirm your subscription. Please enter a valid email address Oops! There was an error sending the email, please try later. cpuwolf
