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How to Build: A Nuclear Submarine

Fourteen years to design and build and costing around a billion pounds, nuclear submarine the Astute is one of the most technologically advanced and controversial machines in the world. For over a year the BBC filmed its construction inside one of the most secure and secret places in the country. Computer graphics go inside the construction of the submarine itself, giving a blueprint of the design, the life-support systems and weaponry. They also help to illustrate the areas that could not be filmed due to national security. The story takes a dramatic turn when an unforeseen event means the submarine has to sail into the open sea for the first time during one of the wettest and windiest weekends of the year. 

abc