来自MSN9 天
Boom Supersonic XB-1 jet breaks sound barrier on historic test flight (video)
Boom Supersonic made history today (Jan. 28) when its XB-1 jet broke the sound barrier for the first time on a test flight ...
SlashGear9 天
5 Worst Fighter Jets To Fly For The US Air Force
However, the now-dominant Air Force hasn't always had this unfailing fortune with their fighter jets. Several fighter ... American F-86 Sabre was the United States' first swept-wing fighter ...