Likewise, ysterday I was reading about Chuck Yeager's first jet flight, in a P-80, and how most of his time was spent manually juggling the fuel flow to prevent

Likewise, ysterday I was reading about Chuck Yeager's first jet flight, in a P-80, and how most of his time was spent manually juggling the fuel flow to prevent the engine either overheating or flaming out. He barely had time to think about actually achieving anything. A decade later, automated fuel flow was standardised and aircraft were flying twice as fast and high.