{"product_id":"gnome-rhone-type-14m-mars-aircraft-engine-manual-collection","title":"Gnome-Rhône Type 14M \"Mars\" Aircraft Engine — Manual Collection","description":"\u003ch3\u003eGnome-Rhône Type 14M \"Mars\" Aircraft Engine — Manual Collection\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eVariants covered:\u003c\/strong\u003e Series 0 to 35 \u0026amp; Series 48 to 49  |  \u003cstrong\u003eTotal documents:\u003c\/strong\u003e 5  |  \u003cstrong\u003eLanguages:\u003c\/strong\u003e French, German\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e📋 Document Manifest\u003c\/h3\u003e\n\u003ch4\u003eVariant: Series 0 to 35 — 4 Documents\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eType 14M (0 to 35) Engine Handbook\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType 14M series 0 to 35 Aircraft Engine – Technical Manual, 1940 — \u003cem\u003eNotice Technique\u003c\/em\u003e (French)\u003c\/li\u003e\n\u003cli\u003eType 14M series 4 to 11 Aircraft Engines Technical Notice — \u003cem\u003eNotice Technique des Moteurs d'Aviation Gnome-Rhône Type 14M\u003c\/em\u003e (French)\u003c\/li\u003e\n\u003cli\u003eType 14M series 4 to 7 Engine Handbook Extract — \u003cem\u003eAuszug aus dem Motorenhandbuch\u003c\/em\u003e (German)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eType 14M (0 to 35) Operating and Maintenance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType 14M series 4 to 11 Aircraft Engine – Operating Manual, 1940 — \u003cem\u003eBetriebshandbuch der Flugmotoren\u003c\/em\u003e (German)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eVariant: Series 48 to 49 — 1 Document\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eType 14M (48 to 49) Technical Reports \u0026amp; Certificates\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType 14M series 48, 49 Aircraft Engine – Engine Data Card, 1942 — \u003cem\u003eMotoren-Karte\u003c\/em\u003e (German)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e⚙️ Engine Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eGnome-Rhône 14M \"Mars\"\u003c\/strong\u003e is a 14-cylinder, two-row air-cooled radial engine developed by Société des Moteurs Gnome et Rhône (France), first introduced in 1937. Derived as a compact, reduced-frame variant of the 14K Mistral Major, it was engineered to replace older single-row engines while minimizing frontal area for twin-engine airframes.\u003c\/p\u003e\n\u003ch3\u003e✈️ Primary Aircraft Applications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMilitary:\u003c\/strong\u003e Henschel Hs 129 B, Potez 631\/633, Gotha Go 244 B, Breguet 693, Hanriot H.220, Morane-Saulnier MS.472\u003cbr\u003e\u003cstrong\u003eCivilian:\u003c\/strong\u003e Potez 670 and pre-war French light transport\/postal prototypes\u003c\/p\u003e\n\u003ch3\u003e🔧 Technical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 14-cylinder, two-row radial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement:\u003c\/strong\u003e 18.92 litres (1,154.6 cu in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower output:\u003c\/strong\u003e 570–710 hp (peak ~820 hp, late military variants)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore × Stroke:\u003c\/strong\u003e 122 mm × 116 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression ratio:\u003c\/strong\u003e 6.5:1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry weight:\u003c\/strong\u003e 419 kg (924 lbs)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrontal diameter:\u003c\/strong\u003e 950 mm (37.4 in) — notably compact for a 14-cylinder radial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel:\u003c\/strong\u003e 87-octane aviation gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupercharger:\u003c\/strong\u003e Single-stage, single-speed centrifugal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduction gear:\u003c\/strong\u003e Planetary system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📅 Production \u0026amp; History\u003c\/h3\u003e\n\u003cp\u003eProduction ran from 1937 to 1944, continuing under German occupation of France. Estimated output: 2,000+ units. Following the 1940 armistice, production was seized by Germany, making the 14M the definitive powerplant for the Luftwaffe's Henschel Hs 129 B tank-buster. Post-war use was limited to trainers such as the MS.472 Vanneau, phased out by the early 1950s.\u003c\/p\u003e\n\u003ch3\u003e🏛️ Current Status\u003c\/h3\u003e\n\u003cp\u003eNo longer in active service. The original Type Certificate holder (Gnome-Rhône) was nationalized in 1945 to form SNECMA, now part of the Safran Group. Surviving examples are held as static museum exhibits at the Smithsonian National Air and Space Museum and the Musée de l'Air et de l'Espace, Paris.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e⚠️ \u003cstrong\u003eRegulatory Notice:\u003c\/strong\u003e Under FAA 14 CFR § 43.13 and EASA Part-M, any mechanic performing maintenance on an active aircraft must use current, manufacturer-approved revision-controlled data. This archival document does not satisfy that requirement.\u003c\/p\u003e\n\u003cp\u003eThis is an archival, static-copy edition fixed at its original publication date. Intended for historical reference, flight simulation, museum restoration, and educational use only. Not approved for active airworthiness maintenance under FAA 14 CFR § 43.13, EASA Part-M, or equivalent international regulations. Operators of active aircraft must use current, revision-controlled publications from the Type Certificate holder or an authorized distributor.\u003c\/p\u003e\n\u003cp\u003eLiving Collections with Free Lifetime Updates — Please review our Disclaimer and Export Notice before purchasing.\u003c\/p\u003e","brand":"Online Aviation Library","offers":[{"title":"Default Title","offer_id":53492552532315,"sku":null,"price":49.85,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4788\/3867\/files\/promotional-gnome-rh-ne-14m-with-title.png?v=1783008630","url":"https:\/\/onlineaviationlibrary.com\/products\/gnome-rhone-type-14m-mars-aircraft-engine-manual-collection","provider":"Online Aviation Library","version":"1.0","type":"link"}