Two Royal Air Force Typhoons caused sonic blasts as they went to catch an air ship which had lost its radio contact over south-east England.
The warriors from RAF Coningsby in Lincolnshire were cleared go supersonic due to the crisis.
The blasts were heard in the early hours crosswise over London, Hertfordshire and Bedfordshire.
The flying machine previously created issues as it flew crosswise over Germany on its way to the US, said one of its pilots.
The pilot applauded the speed of the RAF reaction, however said he was stunned when he previously observed the contenders.
Steven Giordano told the BBC: “It took us around 10 minutes to understand that the radio wasn’t working and afterward around 10 minutes to determine that issue.