{"product_id":"le-rhone-aircraft-engines-manuals-collection","title":"Le Rhône Aircraft Engines Manuals Collection","description":"\u003cp\u003eA focused historical reference collection devoted to the remarkable Le Rhône rotary aircraft engines and the technical literature that supported their operation, care, installation, and adjustment.\u003c\/p\u003e\u003ch2\u003eHistorical overview\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirst introduction:\u003c\/strong\u003e 1910 for the 7-cylinder models; 1912 for the 9-cylinder series.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Société des Moteurs Le Rhône, founded by Louis Verdet; later associated with Gnome et Rhône.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign origins:\u003c\/strong\u003e Evolved from a 7-cylinder rotary concept developed by Louis Verdet at Rossel Peugeot, with a design intended to avoid the dominant Gnome engine patents.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduction:\u003c\/strong\u003e Approximately 1910 through the 1920s, with around 100,000 engines produced, including direct manufacture, licensed production, and copies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKey variants:\u003c\/strong\u003e Le Rhône 7A, 7B and 7B2, rated at approximately 50–60 hp; Le Rhône 9C, rated at 80 hp; Le Rhône 9J, rated at 110–130 hp; and the German Oberursel UR.II copy.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAircraft and operational significance\u003c\/h2\u003e\u003cp\u003eLe Rhône engines powered important military aircraft including the Nieuport 11, Nieuport 17, Sopwith Pup, Sopwith Camel, Hanriot HD.1, Morane-Saulnier N, and the Fokker Dr.I through the Oberursel UR.II derivative. Civil applications included Borel monoplanes, Sommer biplanes, and early post-war utility, sporting, and training aircraft.\u003c\/p\u003e\u003cp\u003eDuring the First World War, the Le Rhône became a backbone powerplant for Allied fighter scouts and was widely valued for its reliability compared with Gnome monosoupape engines. After the war, surplus aircraft using these engines found new lives in barnstorming, early mail delivery, and aviation training.\u003c\/p\u003e\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine type:\u003c\/strong\u003e Air-cooled rotary engine, with the cylinders and propeller rotating around a stationary crankshaft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Single-row circular arrangement, with early 7-cylinder and later 9-cylinder variants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement:\u003c\/strong\u003e Approximately 667–920 cubic inches, or 10.9–15.1 litres, depending on variant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e Approximately 80–130 hp for the principal 9-cylinder engines in this collection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore and stroke:\u003c\/strong\u003e 105 × 140 mm for the 9C and 9J; the higher-powered 9Jb used 112 × 170 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression ratio:\u003c\/strong\u003e Approximately 4.5:1–4.8:1.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approximately 268–323 lb, or 121.5–147 kg.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel and lubrication:\u003c\/strong\u003e Straight-run gasoline with castor oil in a total-loss lubrication system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNotable features:\u003c\/strong\u003e A single push-pull rod system using one rocker arm for both intake and exhaust valves, plus a split master connecting rod with internal concentric grooves securing the bronze slipper shoes of the articulating rods.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCurrent historical status\u003c\/h2\u003e\u003cp\u003eOriginal airframes and modern vintage reproductions equipped with Le Rhône-type engines remain active in exceptional heritage-flight settings, including aircraft associated with The Vintage Aviator and the Shuttleworth Collection. The engines are primarily of museum and historical interest today, with no current type certificate holder or active service bulletins and airworthiness directives identified in this collection data.\u003c\/p\u003e\u003ch2\u003eFive manual groups in this collection\u003c\/h2\u003e\u003cp\u003eThe collection follows the five-group Rhône manifest. The group names below preserve the archive structure, while the detailed title-page records are retained where they have been confirmed. Some groups contain more than one file, and the 80–110 hp, 110 hp English, and 110\/130 hp 1918 folders should be checked for overlap before being described as separate editions.\u003c\/p\u003e\u003col\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eLe Rhône 80 HP Engine Manuals, 1920\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eLe Rhône 80–110 HP Engine Manuals\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eLe Rhône 110 HP and 130 HP Engine Manuals, 1918\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eLe Rhône 110 HP Engine Manuals, English\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eLe Rhône CJ Engine Manuals\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eConfirmed title-page records\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eInstructions for 80-horsepower Le Rhone Engine\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eDocument number:\u003c\/strong\u003e N\/A\u003cbr\u003e\u003cstrong\u003eDate:\u003c\/strong\u003e 1919\u003cbr\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Operator \/ instructional manual\u003cbr\u003e\u003cstrong\u003ePublisher:\u003c\/strong\u003e United States Bureau of Aircraft Production \/ Air Service\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eCare and Maintenance Manual for the Le Rhone Type J 9 Cylinder, 110hp Aero Engine\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eDocument number:\u003c\/strong\u003e Part No. 8\u003cbr\u003e\u003cstrong\u003eDate:\u003c\/strong\u003e Circa 1917–1918\u003cbr\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Maintenance manual\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003e110 H.P. Le Rhone Engine Installation, Operation, Description\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eDocument number:\u003c\/strong\u003e GGLERHONE HB C\u003cbr\u003e\u003cstrong\u003eDate:\u003c\/strong\u003e Circa 1918\u003cbr\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Service \/ operator manual\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eThis archive is intended for aviation historians, collectors, restorers, museums, and researchers of First World War aircraft technology. It preserves the five-group manifest while avoiding unsupported claims about exact edition details where the title pages still require checking.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eHistorical reference material only. Not a substitute for current engineering, maintenance, or airworthiness instructions.\u003c\/em\u003e\u003c\/p\u003e","brand":"Online Aviation Library","offers":[{"title":"Default Title","offer_id":53961692479835,"sku":null,"price":48.85,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4788\/3867\/files\/updated-oal-le-rh-ne-banner.png?v=1788417468","url":"https:\/\/onlineaviationlibrary.com\/products\/le-rhone-aircraft-engines-manuals-collection","provider":"Online Aviation Library","version":"1.0","type":"link"}