| Speed | Medium | Medium | Medium | Low | Low | Low |
| Engine power (kW) | 4500 | 9500 | 18,000 | 8500 | 15,000 | 48,000 |
| Cylinders | 9 | 12 | 16 | 6 | 8 | 12 |
| Liter/cylinder | 35 | 65 | 95 | 380 | 650 | 1400 |
| Engine speed (rpm) | 650 | 550 | 500 | 130 | 110 | 100 |