{"product_id":"north-american-xb-70-valkyrie-book-peter-e-davies-9781472825032","title":"North American XB-70 Valkyrie","description":"Of the many futuristic military aircraft concepts created in the 1950s the North American XB-70 still stands out as the most awe-inspiring.  With its huge, white partially-folding delta wing, its fuselage resembling a striking cobra and its extraordinary performance, it was one of the foremost technological achievements of the 20th century.  A strategic bomber built to outrun any Soviet fighter jet, it could reach Mach 3 with a full nuclear payload - as fast as the legendary SR-71 Blackbird but more than three times the size. However, its role as a nuclear bomber was limited after the introduction of Intercontinental Ballistic Missiles, and defence cuts eventually led to the project being scrapped in the mid-1960s.  The Valkyrie had a brief, costly decade of life but it proved the continuing value of developing manned bombers. However, almost half a century after the XB-70 its predecessor, the B-52, continues in service. Using full colour artwork and rigorous analysis, this is the complete story of the ultimate US Cold War military X-plane.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ GARDNERS","offer_id":49735080116497,"sku":"NGR9781472825032","price":12.89,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":50161734680849,"sku":"CIN1472825039G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ LIKE_NEW \/ INTERNAL","offer_id":50756636967185,"sku":"GOR009556428","price":11.3,"currency_code":"GBP","in_stock":false},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":51700276920593,"sku":"GOR009222452","price":10.6,"currency_code":"GBP","in_stock":false},{"title":"GB \/ GOOD \/ INTERNAL","offer_id":53393986421009,"sku":"GOR014899600","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1472825039.jpg?v=1751272848","url":"https:\/\/www.worldofbooks.com\/en-gb\/products\/north-american-xb-70-valkyrie-book-peter-e-davies-9781472825032","provider":"World of Books ","version":"1.0","type":"link"}