{ "item_title" : "Flight Without Formulae", "item_author" : [" Commandant Duchene", "John H. Ledeboer "], "item_description" : "Flight Without Formulae is a book written by Commandant Duchene in 1916 that provides a simple yet comprehensive discussion on the mechanics of aeroplanes. The book is aimed at pilots and aviation enthusiasts who have little to no knowledge of the technical aspects of flight. The author uses easy-to-understand language and analogies to explain the principles of flight, including lift, drag, and thrust. The book covers topics such as the design of wings, the operation of engines, and the effects of weather on flight. It also includes illustrations and diagrams to aid in the understanding of the concepts discussed. Flight Without Formulae is an excellent resource for anyone interested in the science of flight and is considered a classic in the field of aviation.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.", "item_img_path" : "https://covers3.booksamillion.com/covers/bam/1/16/397/010/1163970107_b.jpg", "price_data" : { "retail_price" : "27.95", "online_price" : "27.95", "our_price" : "27.95", "club_price" : "27.95", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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