{"product_id":"pobjoy-airmotors-manuals-collection","title":"Pobjoy Airmotors Manuals Collection","description":"\u003ch2\u003eRare British aero-engine documentation from the Pobjoy era\u003c\/h2\u003e\u003cp\u003eThis historical manual collection brings together two original Pobjoy Airmotors publications covering the distinctive geared, seven-cylinder radial engines that powered a small but memorable group of British light aircraft.\u003c\/p\u003e\u003cp\u003ePobjoy Airmotors \u0026amp; Aircraft, Ltd. introduced its engines in 1928 and produced approximately 670 engines between 1930 and 1940. The range evolved from the Pobjoy P prototype through the R, Cataract, Cascade and Niagara families, with outputs from approximately 67 to 142 hp. Their helical reduction gearing allowed high engine speed with low propeller-tip speed, giving Pobjoy installations their characteristic offset propeller hub.\u003c\/p\u003e\u003ch3\u003eIncluded in this collection\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePobjoy “R” Type Aero-Engine, 80 H.P.\u003c\/strong\u003e Operation, Installation and Maintenance, second edition, issued November 1932, Publication C103. Operator and maintenance coverage for the R-series engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePobjoy “Niagara” Series III, “Cataract” Series III and “Niagara” Series IV\u003c\/strong\u003e Installation, Care and Maintenance, issued November 1936, Publication 1000-11-36. A combined service, operator and parts reference for these engine types.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHistorical and technical context\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGeared, air-cooled, seven-cylinder single-row radial engine design\u003c\/li\u003e\n\u003cli\u003e173.0 cu in (2.835 L) displacement, 77 mm bore and 87 mm stroke\u003c\/li\u003e\n\u003cli\u003eApproximate range of 67 to 142 hp, depending on variant\u003c\/li\u003e\n\u003cli\u003eAssociated with aircraft including the Comper Swift, General Aircraft Monospar, Short Scion, British Aircraft Swallow and Fleet Shadower prototypes\u003c\/li\u003e\n\u003cli\u003eToday, surviving examples are primarily of museum and historical interest, with a tiny number still flying in vintage aircraft\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eA compelling reference set for collectors, restorers, historians and enthusiasts researching the engineering, installation and continued preservation of Pobjoy-powered aircraft.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eHistorical documentation for reference and research. It is not current maintenance or airworthiness guidance.\u003c\/em\u003e\u003c\/p\u003e","brand":"Online Aviation Library","offers":[{"title":"Default Title","offer_id":53957791220059,"sku":null,"price":48.85,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4788\/3867\/files\/pobjoy-manuals-collection-banner.png?v=1788363269","url":"https:\/\/onlineaviationlibrary.com\/products\/pobjoy-airmotors-manuals-collection","provider":"Online Aviation Library","version":"1.0","type":"link"}