Sorry for my layman use of language. The Judge refused permission for appeal. So their case is not closed. I understand that he was not impressed with how the case was presented (changing tack) and identified that this was about commercial competition rather than safety. MoD/MAA was proven to have no case to answer and the claimants ordered to pay Northolt's costs.
However, I understand now that CoA is an option for the claimants. But their spin on the result in their publications indicates that they were happy with the outcome
So rather than 'case closed' I should have said, (probably) no more court drama between Northolt and Biggin/Oxford.