{"product_id":"junkers-jumo-207-engine-collection-variants-a-b-c-d","title":"Junkers Jumo 207 Engine Collection — Variants A-B \u0026 C-D","description":"\u003ch2\u003eJunkers Jumo 207 — Factory Documentation Collection\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eJunkers Jumo 207\u003c\/strong\u003e was one of the most extraordinary aero-engines of the Second World War — a liquid-cooled, two-stroke compression-ignition diesel powerplant engineered specifically for extreme high-altitude operations. Evolved directly from the legendary Jumo 205, the 207 added a multi-stage turbo-supercharger and intercooler system that allowed the \u003cstrong\u003eJunkers Ju 86R\u003c\/strong\u003e to cruise at a ceiling of nearly \u003cstrong\u003e50,000 feet (15,000 m)\u003c\/strong\u003e — completely beyond the reach of Allied interceptors in the early war years.\u003c\/p\u003e\u003cp\u003eThis collection brings together \u003cstrong\u003e8 original factory documents\u003c\/strong\u003e covering Variants A-B and C-D, sourced from primary Junkers Flugzeug- und Motorenwerke AG archives. Every manual is an authentic primary source — not a reproduction summary, not a simplified guide.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eCollection Contents — Variant A-B (5 Documents)\u003c\/h3\u003e\u003ch4\u003eEngine Handbooks\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eJumo 207 A, B Aircraft Engine Handbook Manual — \u003cem\u003eMotoren-Handbuch A-B\u003c\/em\u003e (German)\u003c\/li\u003e\n\u003cli\u003eJumo 207 B-3 Aircraft Engine Handbook Manual — \u003cem\u003eMotoren-Handbuch B-3\u003c\/em\u003e (German)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOperating Instructions\u003c\/h4\u003e\u003cul\u003e\u003cli\u003eJumo 207 A-B Aircraft Engines Operating and Maintenance Instructions — \u003cem\u003eBetriebs- und Wartungsvorschrift\u003c\/em\u003e (German)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eTechnical Reports \u0026amp; Certificates\u003c\/h4\u003e\u003cul\u003e\u003cli\u003eJumo 207 A Aircraft Engines Test Data Report — \u003cem\u003eMotoren-Prüfdaten\u003c\/em\u003e (German)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eBrochures \u0026amp; Training Material\u003c\/h4\u003e\u003cul\u003e\u003cli\u003eJumo 205 C, D and Jumo 207 B Aircraft Engine Instructional Training Manual — \u003cem\u003eLehr-Vortrag\u003c\/em\u003e (German)\u003c\/li\u003e\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eCollection Contents — Variant C-D (2 Documents)\u003c\/h3\u003e\u003ch4\u003eEngine Handbooks\u003c\/h4\u003e\u003cul\u003e\u003cli\u003eJumo 207 C-1 Aircraft Engine Handbook Manual — \u003cem\u003eMotoren-Handbuch\u003c\/em\u003e (German)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eTechnical Reports \u0026amp; Certificates\u003c\/h4\u003e\u003cul\u003e\u003cli\u003eJumo 207 C Aircraft Engine Data Card — \u003cem\u003eMotoren-Karte\u003c\/em\u003e (German)\u003c\/li\u003e\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eEngine Subsystems (1 Document — All Variants)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eJunkers Aircraft Engines Electrical Equipment Spare Parts Catalog — \u003cem\u003eErsatzteile\u003c\/em\u003e (German)\u003c\/li\u003e\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eHistorical Background\u003c\/h3\u003e\u003cp\u003eIntroduced in \u003cstrong\u003e1939\u003c\/strong\u003e and produced through \u003cstrong\u003e1944\u003c\/strong\u003e, the Jumo 207 was manufactured in small series of fewer than 200 units by Junkers Flugzeug- und Motorenwerke AG. Its primary military applications included the \u003cstrong\u003eJu 86P\/R\u003c\/strong\u003e high-altitude reconnaissance bombers and the massive \u003cstrong\u003eBlohm \u0026amp; Voss BV 222 Wiking\u003c\/strong\u003e six-engine maritime patrol flying boat. No civilian applications were ever pursued.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Inline Diesel — liquid-cooled, two-stroke compression-ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 6 cylinders, 12 opposed pistons, twin crankshafts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement:\u003c\/strong\u003e 16.6 litres (1,526 cu in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 700–1,200 hp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 648.6 kg (1,430 lbs) dry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel:\u003c\/strong\u003e Diesel (heavy oil)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression ratio:\u003c\/strong\u003e 17:1 to 18:1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNotable feature:\u003c\/strong\u003e Uniflow scavenging; two-stage turbocharger + intercooler + mechanical blower\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCurrent Status\u003c\/h3\u003e\u003cp\u003eMuseum and historical display only. Surviving examples include the Jumo 207 D-V2 at the \u003cstrong\u003eSmithsonian National Air and Space Museum\u003c\/strong\u003e and an exhibit at the \u003cstrong\u003eHugo Junkers Technikmuseum\u003c\/strong\u003e, Dessau, Germany.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cem\u003eLiving Collections with Free Lifetime Updates — Please review our Disclaimer and Export Notice before purchasing.\u003c\/em\u003e\u003c\/p\u003e","brand":"Online Aviation Library","offers":[{"title":"Default Title","offer_id":53370239779163,"sku":null,"price":50.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4788\/3867\/files\/junkers-jumo-207-promotional-banner.png?v=1781297695","url":"https:\/\/onlineaviationlibrary.com\/products\/junkers-jumo-207-engine-collection-variants-a-b-c-d","provider":"Online Aviation Library","version":"1.0","type":"link"}