Missing Dutch submarine found after 80 years off Australian coast - Royal Navy submarine service rife with 'gang bangs' and 'rape lists' whistleblower reveals - UK's last Trafalgar submarine makes final voyage - British engineers successfully test new uncrewed submarine - How the Navy can solve its submarine shortage - Royal Navy 'crisis' as more than 100 submariners 'sacked for taking drugs' - Russian submarine spotted off Scottish west coast - Chester receives unmanned submarine for rescue and recovery missions - Fears 55 Chinese sailors dead after submarine 'caught in trap for US and UK vessels'