{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Helicopter Aerodynamics Volume I: Ray Prouty's Rptpr and Wing Columns 1979092","author_name":"","thumbnail_url":"https://www.ebooknetworking.net/books/B01/LWB/bigB01LWBN7P0.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B01LWBN7P0.html\">Helicopter Aerodynamics Volume I: Ray Prouty&#039;s Rptpr and Wing Columns 1979092</a>","width":400,"height":300}