Without giving too much away, and as already mentioned by others, this scenario has been looked at for some time already. The end game being to move (a none disclosable number) more than two armed officers to a location by air. And I can assure you the drills completed by those involved took A LOT less than hour to get airborne. !!
What is the transit time from Hereford to say hmmmm the northwest ??
That's a long time if people are dying !
As mentioned before, hats off to the boys down Hereford, they're very good at what they do. But they'll never be in the right place to get to a scene quick enough in this scenario.
Although.... That sort of fits in with the npas ethos perfectly.! ie fewer a/c and always turning up late !!