Hispano-Suiza 12X

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This article is about an aircraft engine, for the prototype electric locomotive see AEG 12X
12X
Type Vee piston engine
National origin France
Manufacturer Hispano-Suiza

The Hispano-Suiza 12X was an aircraft piston engine designed in France by Hispano-Suiza during the early 1930s. A 12-cylinder Vee, liquid-cooled design, the 12X was used on several aircraft types, some of them being used in limited numbers during World War II. Due to the 12X's limited power output, its derivative the more powerful Hispano-Suiza 12Y had a longer career.

Variants[edit]

Tabulated data from Lage 2004[1]

Type 72 Hispano-Suiza 12X engines. V-12, bore=130 mm, stroke=170 mm, capacity=27.0 litres.
Model Year Compression Power (hp) @ r.p.m. T-O power (hp) Output reduction Supercharger optimum altitude (m) Weight (kg) Comments
12Xbr (500 hp) 1932 6.4 610 2,200 610 1.5 0 355 Unsupercharged. Rated power (500 hp) less than nominal 610 hp
12Xbrs (500 hp) 1932 5.8 650 2,650 600 1.5 4,000 370 Rated power (500 hp) less than nominal 650 hp
12Xbrg (500 hp) 1932 5.8 715 2,650 670 1.5 2,000 370 Rated power (500 hp) less than nominal 650 hp
12Xbr (600 hp) 1934 6.4 600 2,200 630 1.5 355 For this and all later entries in both tables, Rated power = Nominal power = Power
12Xbrs (690 hp) 1934 5.8 690 2,600 660 1.5 4,500 370
12Xbrs1 (720 hp) 1934 5.8 720 2,600 704 1.5 2,750 370
12Xdrs 1935 5.8 690 2,600 670 1.5 4,000 370 Left handed
12Xfrs 1935 5.8 690 2,600 670 1.5 4,000 370 Right handed
12Xgrs 1935 5.8 690 2,600 670 1.5 4,000 370 Hamilton propeller, right handed
12Xgrs1 1937 5.8 720 2,600 1.5 2,100 370 Hamilton propeller, right handed
12Xhrs 1935 5.8 690 2,600 670 1.5 4,000 370 Hamilton propeller, left handed
12Xhrs1 1937 5.8 720 2,600 1.5 2,100 370 Hamilton propeller, left handed
12Xirs 1935 5.8 690 2,600 670 1.5 4,000 370 Flat flange propeller, left handed
12Xjrs 1935 5.8 690 2,600 670 1.5 4,000 370 Flat flange propeller, right handed


Type 76 Hispano-Suiza 12X engines with 20 mm calibre Hispano-Suiza 404 cannon between cylinder banks, firing through propeller shaft. Cylinder dimensions as Type 73.
Model Year Compression Power (hp) @ r.p.m. T-O power (hp) Output reduction Supercharger optimum altitude (m) Weight (kg) Comments
12Xcrs (690 hp) 1934 5.8 690 2,600 660 1.5 4,500 380
12Xers 1934 5.8 690 2,600 660 1.5 4,500 380 Variable-pitch propeller
12Xirs 1937 5.8 690 2,600 660 1.5 3,900 385 Left handed
12Xjrs 1937 5.8 690 2,600 660 1.5 3,900 385 Right handed
12Xirs1 1937 5.8 720 2,600 738 1.5 2,100 385 Left handed
12Xjrs1 1937 5.8 720 2,600 738 1.5 2,100 385 Right handed
12X 13 1937 690 2,600 738 1.5 3,900 371
Hispano-Suiza 12Xrs

Applications[edit]

Specifications (12Xcrs)[edit]

Data from [2]

General characteristics

  • Type: Twelve-cylinder supercharged liquid-cooled 60° Vee piston engine
  • Bore: 130 mm (5.12 in)
  • Stroke: 170 mm (6.69 in)
  • Displacement: 27 L (1,648 in³)
  • Length: 1,577 mm (62.09 in)
  • Width: 726 mm (28.58 in)
  • Height: 904 mm (35.59 in)
  • Dry weight: 380 kg (838 lb)

Components

Performance

See also[edit]

Related lists

References[edit]

  • Danel, Raymond and Cuny, Jean. L'aviation française de bombardement et de renseignement 1918-1940 Docavia n°12, Editions Larivière
  • Lage, Manual (2004). Hispano Suiza in Aeronautics. Warrendale, USA: SAE International. pp. 486–7. ISBN 0-7680-0997-9.