First Flights with Neil Armstrong讲了什么？
NASA Apollo astronaut Neil Armstrong adds to his long list of space flight & aviation accomplishments as he takes the controls of a variety of flying machines. Each episode blends historic footage, interviews, and flying. Armstrong takes you on an exhilarating adventure through time.
最新一集
季3 · 集 13 — Propellers - Wings With A Twist · 1993-12-08
The Wright brothers realized that a propeller was a rotating wing – giving it a twist made it practical. By the mid 1930s, variable pitch and NACA research revolutionized propeller design. With the coming of the jet age, propellers fell out of favor for large aircraft. But designers soon realized that a fast turboprop with an advanced propeller could be more efficient than the best jetliners.
- 类型
- 纪录
- 首播
- 1991-09-25
主要演员
- Neil Armstrong Host
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