Hispano-Suiza| Industry | Aerospace, Automotive |
|---|
| Headquarters | France |
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| Products | Aircraft piston engines |
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The Hispano-Suiza 12X was a liquid-cooled, 12-cylinder V-type aircraft piston engine produced in France during the early 1930s by Hispano-Suiza. It served as the powerplant for various aircraft, some of which saw limited use throughout World War II. Its relatively low power output led to its replacement by the more robust and commercially favored Hispano-Suiza 12Y engine.
Variants
Type 72 Hispano-Suiza 12X engines. V-12 configuration, bore=130 mm, stroke=170 mm, displacement=27.0 litres.
| Model
|
Year
|
Compression Ratio
|
Power Output (hp)
|
@ r.p.m.
|
Take-Off Power (hp)
|
Optimal Supercharger Altitude (m)
|
Weight (kg)
|
Notes
|
| 12Xbr (500 hp) |
1932 |
6.4 |
610 |
610 |
0 |
355 |
No supercharging; rated power below nominal |
|
| 12Xbrs (500 hp) |
1932 |
5.8 |
650 |
600 |
4,000 |
370 |
Rated power below nominal |
|
| 12Xbrg (500 hp) |
1932 |
5.8 |
715 |
670 |
2,000 |
370 |
Rated power below nominal |
|
| 12Xbr (600 hp) |
1934 |
6.4 |
600 |
630 |
— |
355 |
|
| 12Xbrs (690 hp) |
1934 |
5.8 |
690 |
660 |
4,500 |
370 |
|
| 12Xbrs1 (720 hp) |
1934 |
5.8 |
720 |
704 |
2,750 |
370 |
|
| 12Xdrs |
1935 |
5.8 |
690 |
670 |
4,000 |
370 |
Left-hand rotation |
|
| 12Xfrs |
1935 |
5.8 |
690 |
670 |
4,000 |
370 |
Right-hand rotation |
|
| 12Xgrs |
1935 |
5.8 |
690 |
670 |
4,000 |
370 |
Hamilton propeller, right-hand rotation |
|
| 12Xgrs1 |
1937 |
5.8 |
720 |
— |
2,100 |
370 |
Hamilton propeller, right-hand rotation |
|
| 12Xhrs |
1935 |
5.8 |
690 |
670 |
4,000 |
370 |
Hamilton propeller, left-hand rotation |
|
| 12Xhrs1 |
1937 |
5.8 |
720 |
— |
2,100 |
370 |
Hamilton propeller, left-hand rotation |
|
| 12Xirs |
1935 |
5.8 |
690 |
670 |
4,000 |
370 |
Flat flange propeller, left-hand rotation |
|
| 12Xjrs |
1935 |
5.8 |
690 |
670 |
4,000 |
370 |
Flat flange propeller, right-hand rotation |
|
Type 76 Hispano-Suiza 12X engines equipped with built-in Hispano-Suiza 404 cannon firing through the propeller shaft.
| Model
|
Year
|
Compression Ratio
|
Power Output (hp)
|
@ r.p.m.
|
Take-Off Power (hp)
|
Optimal Supercharger Altitude (m)
|
Weight (kg)
|
Notes
|
| 12Xcrs (690 hp) |
1934 |
5.8 |
690 |
660 |
4,500 |
380 |
|
| 12Xers |
1934 |
5.8 |
690 |
660 |
4,500 |
380 |
Variable-pitch propeller |
|
| 12Xirs |
1937 |
5.8 |
690 |
660 |
3,900 |
385 |
Left-hand rotation |
|
| 12Xjrs |
1937 |
5.8 |
690 |
660 |
3,900 |
385 |
Right-hand rotation |
|
| 12Xirs1 |
1937 |
5.8 |
720 |
738 |
2,100 |
385 |
Left-hand rotation |
|
| 12Xjrs1 |
=1937 |
=5.8 |
=720 |
=738 |
=2,100 |
=385 |
=Right-hand rotation |
|
| 12X13 |
=1937 |
= — |
=690 |
=738 |
=3,900 |
=371 |
|
Applications
Sources
- Danel, Raymond and Cuny, Jean. L'aviation française de bombardement et de renseignement 1918-1940 Docavia no. 12, Editions Larivière
