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The SNECMA 14R was a 14-cylinder two-row a … The SNECMA 14R was a 14-cylinder two-row air-cooled radial engine developed in France just prior to the start of World War II from the Gnome-Rhône 14N. The 14N radial engine was itself an improved version of the popular pre-war Gnome-Rhône 14K Mistral Major series; designed and manufactured by Gnome et Rhône, a major French aircraft engine manufacturer whose origins pre-date the First World War. The improved 14R was initially known as the Gnome-Rhône 14P and then the Gnome-Rhône 14R. There were several improvements such as the introduction of a longer crankshaft and crankcase with a centre bearing, an increase in cylinder capacity, and a two-speed compressor. These changes allowed the engine to deliver 1,400hp at take-off and 1,300hp at 1,500m (1st gear) and 1200hp at 4000m (2nd gear). This came at the cost of a much increased total weight. It was expected that further development, such as the introduction of higher grade fuels, would lead to a power output of 1,660hp at low altitude. With the Fall of France, engine development was stopped under the occupation. After the war, development recommenced; however production of this engine after 1945 was transferred to the newly formed SNECMA and the engine was renamed the SNECMA 14R.and the engine was renamed the SNECMA 14R.
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33237355
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6466
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1111487863
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Starter: Air equipment electric inertia starter
* Ignition: 2 x R.B. magnetos, 2 x short reach spark plugs per cylinder fed by a shielded ignition harness.
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6.8
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Air-cooled with baffles
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http://dbpedia.org/resource/Gnome-Rh%C3%B4ne_14N +
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1
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92
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Frontal Area:
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* List of aircraft engines
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http://dbpedia.org/resource/France +
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0.0067
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Pressure fed at
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14
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*Take-off: at 2,600 rpm at Hg boost with 100 octane fuel
**Military, low: at 2,600 rpm at
**Military, high: at 2,600 rpm at
**Normal, low: at 2,400 rpm at
**Normal, high: at 2,400 rpm at
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1.494
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Planetary / epicyclic bevel reduction gearing at 0.67:1 ratio
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0.292
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| http://dbpedia.org/property/specpower
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31.85
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| http://dbpedia.org/property/supercharger
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Gear-driven 2-speed supercharger at 6.5:1 and 9.0:1 ratios
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14
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Single inlet and exhaust valves operated by rockers and pushrods
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| rdfs:comment |
The SNECMA 14R was a 14-cylinder two-row a … The SNECMA 14R was a 14-cylinder two-row air-cooled radial engine developed in France just prior to the start of World War II from the Gnome-Rhône 14N. The 14N radial engine was itself an improved version of the popular pre-war Gnome-Rhône 14K Mistral Major series; designed and manufactured by Gnome et Rhône, a major French aircraft engine manufacturer whose origins pre-date the First World War.hose origins pre-date the First World War.
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| rdfs:label |
SNECMA 14R
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