article_snippet: The giant steel doors were kept shut from morning until night to hide the construction - there were no unauthorised visits, photographs were banned and workers involved in the project sworn to secrecy were sworn to secrecy.
article_snippet: we tried to keep it as much a secret as possible because you didn't want everybody prying and coming round the hangar, but it got out.
article_snippet: People were prying and trying to see what was going on but half of People didn't believe it, saying: "Building a spaceship?
article_snippet: This rare photograph was taken during the top-secret project which was codenamed Magic Roundabout .
highlights_snippet: Workers at Pembroke Dock were sworn to secrecy over the project and the project was nicknamed the 'Magic Roundabout' 