Mr. Declan Fitzpatrick:

From the safety regulator's perspective, the process it would go through is a validation that the aircraft proposed to operate these can all operate them so it would have gone through simulations of the actual route, tested it with aircraft in simulators to see whether all the aircraft are able to meet the turns where it is proposing turns, the height climbs, etc. That is all part of the process it would go through. That would be tested. It would be flown physically to test the route. From our perspective, that is then going through a consultation process.