Fifty years ago at the height of the Cold War a group of elite airmen were poised to fly Britain's atomic bombers against the enemy if the four minute warning ever went off.
Well thankfully of course, it didn't.
Today, November 25, one of those veterans was back in his old plane as it took a high speed dash down the runway at the Yorkshire Air Museum, near York.
It stirred powerful memories of a bygone age.
Jon Hill reports.