The company is currently constructing the Astute - class submarines the first of which was launched on 8 June 2007 .
The Astute - class submarines are a new generation nuclear attack submarine ( SSN ) for the Royal Navy .
The company is currently constructing the Astute - class submarines , a new generation nuclear attack submarine ( SSN ) for the Royal Navy , the first of which was launched on 8 June 2007 .