{"product_id":"mitsubishi-ki-21-sally-gwen-manuals-photographic-collection","title":"Mitsubishi Ki-21 “Sally” \/ “Gwen” Manuals and Photographic Collection","description":"\u003ch2\u003eMitsubishi Ki-21 “Sally” \/ “Gwen” Manual Collection\u003c\/h2\u003e\u003cp\u003eA two-item historical reference collection covering the Mitsubishi Ki-21, officially designated the Army Type 97 Heavy Bomber and known by the Allied reporting names “Sally” and “Gwen”. It brings together Japanese operating documentation and an English-language photographic archive.\u003c\/p\u003e\u003ch3\u003eCollection contents\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKi-21-II Type 97 Heavy Bomber Operating Instructions Manual\u003c\/strong\u003e (Japanese language), 九七式重爆撃機 二型 取扱説明書.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKi-21 Photographic Collection\u003c\/strong\u003e (English language), containing slides, photographs and brochure material.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHistorical and technical scope\u003c\/h3\u003e\u003cp\u003eThe reference material discusses the aircraft’s all-metal cantilever mid-wing layout, control surfaces, aerodynamic development, engine and propeller installations, handling and stability changes, performance data, defensive modifications, armour, bullet-resistant glazing and self-sealing fuel protection. It follows the evolution from the Ki-21-I with Nakajima Ha-5-Kai engines to the Ki-21-II series with Mitsubishi Ha-101 engines, including the later dorsal-turret configuration associated with the “Gwen” designation.\u003c\/p\u003e\u003cp\u003eThe Ki-21 was Japan’s principal heavy bomber during the late 1930s and the early years of the Second World War. Its surviving documentation offers a useful window into Japanese bomber design, operation and wartime modification practice.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e This is historical and reference material. It is not current approved airworthiness data, maintenance approval or operational guidance. Please assess provenance, rights and distribution status before use.\u003c\/p\u003e","brand":"Online Aviation Library","offers":[{"title":"Default Title","offer_id":53968453271899,"sku":null,"price":25.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4788\/3867\/files\/oal-aviation-archive-banner.png?v=1788496682","url":"https:\/\/onlineaviationlibrary.com\/products\/mitsubishi-ki-21-sally-gwen-manuals-photographic-collection","provider":"Online Aviation Library","version":"1.0","type":"link"}