登入
選單
返回
Google圖書搜尋
An Aerodynamic Investigation of the Feasibility of the High Speed, Rigid Rotor, Helicopter
Leonard Sullivan
出版
Massachusetts Institute of Technology. Department of Aeronautical Engineering
, 1950
URL
http://books.google.com.hk/books?id=0dXuNwAACAAJ&hl=&source=gbs_api