14th June 2017:-
The world's longest aircraft, Airlander 10, took off from Cardington and completed its fourth test flight last night - reaching the highest altitude it has attained so far.
During the flight, which lasted about four hours, it reached 3,500ft (1,067m).The craft varied its speed to between 20 and 30 knots, measuring the acceleration and deceleration with the thousands of sensors on board.
After doing a series of landing practice runs, Hybrid Air Vehicles said Airlander was "safely on the mast following a hugely successful flight" by 22:15.
From:-
BBC Local Live: Beds, Herts and Bucks - BBC News