| H1 12 | H1 11 | Change | |
|---|---|---|---|
| Order book (£bn) | 5.5 | 6.0* | -8% |
| Engine deliveries | 393 | 330 | +19% |
| Underlying revenue (£m) | 1,134 | 1,088 | +4% |
| Underlying OE revenue (£m) | 559 | 504 | +11% |
| Underlying services revenue (£m) | 575 | 584 | -2% |
| Underlying profit before financing (£m) | 196 | 219 | -11% |
* 2011 year-end data
Review by business segment