nDAC Chart Data
The data is provided by the European Aeronautical Group (EAG), previously known as SAS Flight Support. Significant for EAG is their professional evaluation of the raw material provided by the authorities. The information is validated and only information necessary to fly large aircraft is published on the chart which makes for clean and easily interpreted information.
The airport charts are revised as new data become available. The revision cycles were six months until August 2006. From November 2006 a revision cycle for nDAC charts is three months. For past revision figures see the table below.
Enroute charts were added in batch 7. These charts will follow the same revision cycles as airport charts.
| # Airport Charts | # Enroute Charts | |
| Batch 1: MAR04 | 14,655 | - |
| Batch 2: NOV04 | 16,120 | - |
| Batch 3: MAY05 | 16,987 | - |
| Batch 4: JAN06 | 18,274 | - |
| Batch 5: AUG06 | 19,211 | - |
| Batch 6: NOV06 | 19,674 | - |
| Batch 7: FEB07 | 20,142 | 96 |
| Batch 8: MAY07 | 20,669 | 104 |
| Batch 9: SEP07 | 21,213 | 108 |
| Batch 10: NOV07 | 21,581 | 112 |
| Batch 11: FEB08 | 22,655 | 114 |
| Batch 12: MAY08 | 23,271 | 118 |
| Batch 13: AUG08 (current) | 23,667 | 138 |