{"product_id":"calculation-of-counterrotating-propellers-nasa-technical-reports-server-ntrs-9781287244691","title":"Calculation of Counterrotating Propellers","description":"A method for calculation of a counterrotating propeller which is similar to Walchner's method for calculation of the single propeller in the free air stream is developed and compared with measurements. Several dimensions which are important for the design are given end simple formulas for the gain in efficiency derived. Finally a survey of the behavior of the propeller for various operating conditions is presented.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Nasa Technical Reports Server (Ntrs),F. Ginzel\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1287244696\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781287244691\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Bibliogov\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 07\/23\/2013\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 66\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.30lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.69h x 7.44w x 0.14d","brand":"Nasa Technical Reports Server (Ntrs)","offers":[{"title":"Paperback","offer_id":47611322040575,"sku":"9781287244691","price":17.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_d568f8d6-2252-49d8-8a47-e4f3b9d1a9ae.jpg?v=1764513146","url":"https:\/\/www.whiterainbookhouse.com\/products\/calculation-of-counterrotating-propellers-nasa-technical-reports-server-ntrs-9781287244691","provider":"WR Book House","version":"1.0","type":"link"}