返回Google圖書搜尋

Vibration Surveys of the P-47-B Rudder and Fin-rudder Assembly

出版	National Advisory Committee for Aeronautics, 1943
URL	http://books.google.com.hk/books?id=3YtUPwAACAAJ&hl=&source=gbs_api

註釋The present work was conducted in connection with a study of the flutter characteristics of the P-47 tail assembly. The original fabric-covered rudder designated by "I" was subsequently replaced by a metal-covered rudder designated by "II." The fin was also somewhat reinforced and the vibration results on the combination of this reinforced fin and the metal rudder is given under III. This combination, which is now in use (April 1943), proved completely satisfactory from a vibration standpoint and has subsequently been tested in flight to a true speed of the order of 600 mile per hour. As a matter of record the vibration survey is therefore given.