I refer the hon. Member to the answer I gave on 22 May 2006, Official Report, column 1262W to the hon. Member for Weston-Super-Mare (Mr. Penrose) in respect of operational submarines. Two types of submarines make up the Royal Navy Submarine Service. There are 10 Fleet Submarines, of which eight are operational. There are four Ballistic Missile Submarines, of which three are operational. The position remains unchanged.