The Queen christens new P&O Cruises superliner, the Britannia

The transcript describes the naming of a ship called Britannia and includes a blessing for the ship and its future voyages.

What is the name of the ship mentioned in the text?

What is the duration of the phrase 'I named the ship Britannia'?

What month is mentioned in the text?

What is the sentiment expressed towards the ship and those who sail in her?

How long is the duration of the phrase 'God bless her and all who sail in her'?