They almost make it sound like an Airfix kit! "When the country was under attack and under rationing, that, surely, was no time to be worrying about world records. But after months of nightly bombing raids by the Luftwaffe, the Ministry of War was keen to show the world - friend and foe - that Britain could dish it out as well as take it. And so, in collaboration with the RAF, the ministry issued a challenge to one of the factories churning out planes for Bomber Command - to build an operational Wellington bomber in record-breaking time." BBC News - Building a bomber plane in just a day
