Radar glitch requires F-35 fighter jet pilots to turn it off and on again

Troubled warplane that has yet to see any cyber security testing hit with yet another bug affecting flight performance requiring software update

The much maligned F-35 Joint Strike Fighter has yet another problem with its software: the radar stops working requiring the pilot to turn it off and on again.

The Lockheed Martin plane, which has been in development since 2001 and is the most software-driven warplane ever built, has experienced several failures and setbacks that have seen its cost balloon and its delivery delayed. Each jet is now expected to cost about 100m.