Hispano-Suiza 12X
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
Tabulated data from Lage 2004| Model | Year | Compression | Power | @ r.p.m. | T-O power | Output reduction | Supercharger optimum altitude | Weight | Comments | - |
| 12Xbr | 1932 | 6.4 | 610 | 2,200 | 610 | 1.5 | 0 | 355 | Unsupercharged. Rated power less than nominal 610 hp | |
| 12Xbrs | 1932 | 5.8 | 650 | 2,650 | 600 | 1.5 | 4,000 | 370 | Rated power less than nominal 650 hp | |
| 12Xbrg | 1932 | 5.8 | 715 | 2,650 | 670 | 1.5 | 2,000 | 370 | Rated power less than nominal 650 hp | |
| 12Xbr | 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 | 1934 | 5.8 | 690 | 2,600 | 660 | 1.5 | 4,500 | 370 | - | |
| 12Xbrs1 | 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 |
| Model | Year | Compression | Power | @ r.p.m. | T-O power | Output reduction | Supercharger optimum altitude | Weight | Comments | - |
| 12Xcrs | 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
- Bernard 260
- Blériot-SPAD S.510
- Dewoitine D.500
- Hanriot H.110
- Hawker Spanish Fury
- Hawker Spanish Osprey
- Loire 102
- Loire 130
- Loire-Nieuport LN.40
- Lioré et Olivier H-246
- Mitsubishi A5M3a
- Morane-Saulnier M.S. 227
- Nakajima Ki-12
- Potez 540
- Potez 650
Comparable engines
- Rolls-Royce Kestrel
- Curtiss V-1570
- BMW VI
Specifications (12Xcrs)