{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Principles of Helicopter Aerodynamics (Cambridge Aerospace Series)","author_name":"J. Gordon Leishman","thumbnail_url":"https://www.ebooknetworking.net/books/052/152/big0521523966.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0521523966.html\">Principles of Helicopter Aerodynamics (Cambridge Aerospace Series)</a>","width":400,"height":300}