BBC - How To Build... S01E01: A Nuclear Submarine (2010)

! In a three-part series called “How to build …….” Britain’s iconic and ‘secretive’ (BBC description!) engineering companies reveal how they build the world's most amazing machines.
The series starts with “How to build ……a nuclear submarine” a documentary following the construction of the Astute nuclear submarine. The two other programmes in the series will be “How to build….. a jumbo jet engine”, the story of the thousands of people who design, build and test engines at Rolls-Royce’s manufacturing plants in Derby and across the UK, making Rolls-Royce a central part of life for the people of places like Derby; and “How to build …. Britain’s secret engineers” when the documentary team follows workers at a leading British company on a global journey, as they reveal a handful of their secretive projects including getting Chinook helicopters ready for front line service.

Part 1: 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. The film features many of the workers including Erin Browne, a 19-year-old apprentice electrician who wires up the boat; Commander Paul Knight, responsible for the safety of the nuclear reactor; and Derek Parker, whose job involves moving massive pieces of the submarine that weigh hundreds of tons into position before the welding team join them together. 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.