登入選單

返回Google圖書搜尋

Tests of Two Full-scale Propellers with Different Pitch Distributions at Blade Angles Up to 60 ̊

David BiermannEdwin P. Hartman

出版	National Advisory Committee for Aeronautics, 1939
URL	http://books.google.com.hk/books?id=sdXrtwAACAAJ&hl=&source=gbs_api