K Boat Catastrophe: Eight Ships & Five Collisions

On 31 January 1918 nine K Class steam-powered submarines sailed with the Grand Fleet to Exercise in the North Sea. The ships left the Firth of Forth at a speed of 21 knots on a cold winter night with the flagship HMS Courageous leading the way. Background information on the evolution of the ill-fated and much hated K Class submarines is also includ