Not as narrow as many want to believe. The Wright brothers were the only ones doing actual engineering on the subject. They were 5 years ahead of everybody else

Not as narrow as many want to believe. The Wright brothers were the only ones doing actual engineering on the subject. They were 5 years ahead of everybody else and remember that being second is much much easier than being first, for one somebody else is the one making all the mistakes. https://www.youtube.com/watch?v=EkpQAGQiv4Q https://www.youtube.com/watch?v=EkpQAGQiv4Q